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-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- How many transactions correspond to each invoice number?
| SELECT invoice_number , count(*) FROM Financial_transactions GROUP BY invoice_number; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- What is the invoice number and invoice date for the invoice with most number of transactions?
| SELECT T2.invoice_number , T2.invoice_date FROM Financial_transactions AS T1 JOIN Invoices AS T2 ON T1.invoice_number = T2.invoice_number GROUP BY T1.invoice_number ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- What is the invoice number and invoice date corresponding to the invoice with the greatest number of transactions?
| SELECT T2.invoice_number , T2.invoice_date FROM Financial_transactions AS T1 JOIN Invoices AS T2 ON T1.invoice_number = T2.invoice_number GROUP BY T1.invoice_number ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- How many invoices do we have?
| SELECT count(*) FROM Invoices; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- Count the number of invoices.
| SELECT count(*) FROM Invoices; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- Show invoice dates and order id and details for all invoices.
| SELECT T1.invoice_date , T1.order_id , T2.order_details FROM Invoices AS T1 JOIN Orders AS T2 ON T1.order_id = T2.order_id; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- What are the invoice dates, order ids, and order details for all invoices?
| SELECT T1.invoice_date , T1.order_id , T2.order_details FROM Invoices AS T1 JOIN Orders AS T2 ON T1.order_id = T2.order_id; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- Show the order ids and the number of invoices for each order.
| SELECT order_id , count(*) FROM Invoices GROUP BY order_id; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- How many invoices correspond to each order id?
| SELECT order_id , count(*) FROM Invoices GROUP BY order_id; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- What is the order id and order details for the order more than two invoices.
| SELECT T2.order_id , T2.order_details FROM Invoices AS T1 JOIN Orders AS T2 ON T1.order_id = T2.order_id GROUP BY T2.order_id HAVING count(*) > 2; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- Return the order ids and details for orderes with two or more invoices.
| SELECT T2.order_id , T2.order_details FROM Invoices AS T1 JOIN Orders AS T2 ON T1.order_id = T2.order_id GROUP BY T2.order_id HAVING count(*) > 2; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- What is the customer last name, id and phone number with most number of orders?
| SELECT T2.customer_last_name , T1.customer_id , T2.phone_number FROM Orders AS T1 JOIN Customers AS T2 ON T1.customer_id = T2.customer_id GROUP BY T1.customer_id ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- Return the last name, id and phone number of the customer who has made the greatest number of orders.
| SELECT T2.customer_last_name , T1.customer_id , T2.phone_number FROM Orders AS T1 JOIN Customers AS T2 ON T1.customer_id = T2.customer_id GROUP BY T1.customer_id ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- Show all product names without an order.
| SELECT product_name FROM Products EXCEPT SELECT T1.product_name FROM Products AS T1 JOIN Order_items AS T2 ON T1.product_id = T2.product_id; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- What are the names of products that have never been ordered?
| SELECT product_name FROM Products EXCEPT SELECT T1.product_name FROM Products AS T1 JOIN Order_items AS T2 ON T1.product_id = T2.product_id; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- Show all product names and the total quantity ordered for each product name.
| SELECT T2.product_name , sum(T1.product_quantity) FROM Order_items AS T1 JOIN Products AS T2 ON T1.product_id = T2.product_id GROUP BY T2.product_name; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- What are the different product names, and what is the sum of quantity ordered for each product?
| SELECT T2.product_name , sum(T1.product_quantity) FROM Order_items AS T1 JOIN Products AS T2 ON T1.product_id = T2.product_id GROUP BY T2.product_name; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- Show the order ids and the number of items in each order.
| SELECT order_id , count(*) FROM Order_items GROUP BY order_id; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- How many order items correspond to each order id?
| SELECT order_id , count(*) FROM Order_items GROUP BY order_id; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- Show the product ids and the number of unique orders containing each product.
| SELECT product_id , count(DISTINCT order_id) FROM Order_items GROUP BY product_id; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- How many distinct order ids correspond to each product?
| SELECT product_id , count(DISTINCT order_id) FROM Order_items GROUP BY product_id; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- Show all product names and the number of customers having an order on each product.
| SELECT T2.product_name , count(*) FROM Order_items AS T1 JOIN Products AS T2 ON T1.product_id = T2.product_id JOIN Orders AS T3 ON T3.order_id = T1.order_id GROUP BY T2.product_name; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- What are teh names of the different products, as well as the number of customers who have ordered each product.
| SELECT T2.product_name , count(*) FROM Order_items AS T1 JOIN Products AS T2 ON T1.product_id = T2.product_id JOIN Orders AS T3 ON T3.order_id = T1.order_id GROUP BY T2.product_name; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- Show order ids and the number of products in each order.
| SELECT order_id , count(DISTINCT product_id) FROM Order_items GROUP BY order_id; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- How many different products correspond to each order id?
| SELECT order_id , count(DISTINCT product_id) FROM Order_items GROUP BY order_id; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- Show order ids and the total quantity in each order.
| SELECT order_id , sum(product_quantity) FROM Order_items GROUP BY order_id; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- Give the order ids for all orders, as well as the total product quantity in each.
| SELECT order_id , sum(product_quantity) FROM Order_items GROUP BY order_id; |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- How many products were not included in any order?
| SELECT count(*) FROM products WHERE product_id NOT IN ( SELECT product_id FROM Order_items ); |
-- Database schema
| Customers : customer_id [ INT ] primary_key , customer_first_name [ TEXT ] , customer_middle_initial [ TEXT ] , customer_last_name [ TEXT ] , gender [ TEXT ] , email_address [ TEXT ] , login_name [ TEXT ] , login_password [ TEXT ] , phone_number [ TEXT ] , town_city [ TEXT ] , state_county_province [ TEXT ] , country [ TEXT ] | Orders : order_id [ INT ] primary_key , customer_id [ INT ] Orders.customer_id = Customers.customer_id , date_order_placed [ TEXT ] , order_details [ TEXT ] | Invoices : invoice_number [ INT ] primary_key , order_id [ INT ] Invoices.order_id = Orders.order_id , invoice_date [ TEXT ] | Accounts : account_id [ INT ] primary_key , customer_id [ INT ] Accounts.customer_id = Customers.customer_id , date_account_opened [ TEXT ] , account_name [ TEXT ] , other_account_details [ TEXT ] | Product_Categories : production_type_code [ TEXT ] primary_key , product_type_description [ TEXT ] , vat_rating [ INT ] | Products : product_id [ INT ] primary_key , parent_product_id [ INT ] , production_type_code [ TEXT ] Products.production_type_code = Product_Categories.production_type_code , unit_price [ INT ] , product_name [ TEXT ] , product_color [ TEXT ] , product_size [ TEXT ] | Financial_Transactions : transaction_id [ INT ] , account_id [ INT ] Financial_Transactions.account_id = Accounts.account_id , invoice_number [ INT ] Financial_Transactions.invoice_number = Invoices.invoice_number , transaction_type [ TEXT ] , transaction_date [ TEXT ] , transaction_amount [ INT ] , transaction_comment [ TEXT ] , other_transaction_details [ TEXT ] | Order_Items : order_item_id [ INT ] primary_key , order_id [ INT ] Order_Items.order_id = Orders.order_id , product_id [ INT ] Order_Items.product_id = Products.product_id , product_quantity [ TEXT ] , other_order_item_details [ TEXT ] | Invoice_Line_Items : order_item_id [ INT ] Invoice_Line_Items.order_item_id = Order_Items.order_item_id , invoice_number [ INT ] Invoice_Line_Items.invoice_number = Invoices.invoice_number , product_id [ INT ] Invoice_Line_Items.product_id = Products.product_id , product_title [ TEXT ] , product_quantity [ TEXT ] , product_price [ INT ] , derived_product_cost [ INT ] , derived_vat_payable [ INT ] , derived_total_cost [ INT ] |
-- -- Count the number of products that were never ordered.
| SELECT count(*) FROM products WHERE product_id NOT IN ( SELECT product_id FROM Order_items ); |
-- Database schema
| people : People_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Is_Male [ TEXT ] , Age [ INT ] | church : Church_ID [ INT ] primary_key , Name [ TEXT ] , Organized_by [ TEXT ] , Open_Date [ INT ] , Continuation_of [ TEXT ] | wedding : Church_ID [ INT ] primary_key wedding.Church_ID = church.Church_ID , Male_ID [ INT ] wedding.Male_ID = people.People_ID , Female_ID [ INT ] wedding.Female_ID = people.People_ID , Year [ INT ] |
-- -- How many churches opened before 1850 are there?
| SELECT count(*) FROM Church WHERE Open_Date < 1850; |
-- Database schema
| people : People_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Is_Male [ TEXT ] , Age [ INT ] | church : Church_ID [ INT ] primary_key , Name [ TEXT ] , Organized_by [ TEXT ] , Open_Date [ INT ] , Continuation_of [ TEXT ] | wedding : Church_ID [ INT ] primary_key wedding.Church_ID = church.Church_ID , Male_ID [ INT ] wedding.Male_ID = people.People_ID , Female_ID [ INT ] wedding.Female_ID = people.People_ID , Year [ INT ] |
-- -- Show the name, open date, and organizer for all churches.
| SELECT name , open_date , organized_by FROM Church; |
-- Database schema
| people : People_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Is_Male [ TEXT ] , Age [ INT ] | church : Church_ID [ INT ] primary_key , Name [ TEXT ] , Organized_by [ TEXT ] , Open_Date [ INT ] , Continuation_of [ TEXT ] | wedding : Church_ID [ INT ] primary_key wedding.Church_ID = church.Church_ID , Male_ID [ INT ] wedding.Male_ID = people.People_ID , Female_ID [ INT ] wedding.Female_ID = people.People_ID , Year [ INT ] |
-- -- List all church names in descending order of opening date.
| SELECT name FROM church ORDER BY open_date DESC; |
-- Database schema
| people : People_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Is_Male [ TEXT ] , Age [ INT ] | church : Church_ID [ INT ] primary_key , Name [ TEXT ] , Organized_by [ TEXT ] , Open_Date [ INT ] , Continuation_of [ TEXT ] | wedding : Church_ID [ INT ] primary_key wedding.Church_ID = church.Church_ID , Male_ID [ INT ] wedding.Male_ID = people.People_ID , Female_ID [ INT ] wedding.Female_ID = people.People_ID , Year [ INT ] |
-- -- Show the opening year in whcih at least two churches opened.
| SELECT open_date FROM church GROUP BY open_date HAVING count(*) >= 2; |
-- Database schema
| people : People_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Is_Male [ TEXT ] , Age [ INT ] | church : Church_ID [ INT ] primary_key , Name [ TEXT ] , Organized_by [ TEXT ] , Open_Date [ INT ] , Continuation_of [ TEXT ] | wedding : Church_ID [ INT ] primary_key wedding.Church_ID = church.Church_ID , Male_ID [ INT ] wedding.Male_ID = people.People_ID , Female_ID [ INT ] wedding.Female_ID = people.People_ID , Year [ INT ] |
-- -- Show the organizer and name for churches that opened between 1830 and 1840.
| SELECT organized_by , name FROM church WHERE open_date BETWEEN 1830 AND 1840; |
-- Database schema
| people : People_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Is_Male [ TEXT ] , Age [ INT ] | church : Church_ID [ INT ] primary_key , Name [ TEXT ] , Organized_by [ TEXT ] , Open_Date [ INT ] , Continuation_of [ TEXT ] | wedding : Church_ID [ INT ] primary_key wedding.Church_ID = church.Church_ID , Male_ID [ INT ] wedding.Male_ID = people.People_ID , Female_ID [ INT ] wedding.Female_ID = people.People_ID , Year [ INT ] |
-- -- Show all opening years and the number of churches that opened in that year.
| SELECT open_date , count(*) FROM church GROUP BY open_date; |
-- Database schema
| people : People_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Is_Male [ TEXT ] , Age [ INT ] | church : Church_ID [ INT ] primary_key , Name [ TEXT ] , Organized_by [ TEXT ] , Open_Date [ INT ] , Continuation_of [ TEXT ] | wedding : Church_ID [ INT ] primary_key wedding.Church_ID = church.Church_ID , Male_ID [ INT ] wedding.Male_ID = people.People_ID , Female_ID [ INT ] wedding.Female_ID = people.People_ID , Year [ INT ] |
-- -- Show the name and opening year for three churches that opened most recently.
| SELECT name , open_date FROM church ORDER BY open_date DESC LIMIT 3; |
-- Database schema
| people : People_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Is_Male [ TEXT ] , Age [ INT ] | church : Church_ID [ INT ] primary_key , Name [ TEXT ] , Organized_by [ TEXT ] , Open_Date [ INT ] , Continuation_of [ TEXT ] | wedding : Church_ID [ INT ] primary_key wedding.Church_ID = church.Church_ID , Male_ID [ INT ] wedding.Male_ID = people.People_ID , Female_ID [ INT ] wedding.Female_ID = people.People_ID , Year [ INT ] |
-- -- How many female people are older than 30 in our record?
| SELECT count(*) FROM people WHERE is_male = 'F' AND age > 30; |
-- Database schema
| people : People_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Is_Male [ TEXT ] , Age [ INT ] | church : Church_ID [ INT ] primary_key , Name [ TEXT ] , Organized_by [ TEXT ] , Open_Date [ INT ] , Continuation_of [ TEXT ] | wedding : Church_ID [ INT ] primary_key wedding.Church_ID = church.Church_ID , Male_ID [ INT ] wedding.Male_ID = people.People_ID , Female_ID [ INT ] wedding.Female_ID = people.People_ID , Year [ INT ] |
-- -- Show the country where people older than 30 and younger than 25 are from.
| SELECT country FROM people WHERE age < 25 INTERSECT SELECT country FROM people WHERE age > 30; |
-- Database schema
| people : People_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Is_Male [ TEXT ] , Age [ INT ] | church : Church_ID [ INT ] primary_key , Name [ TEXT ] , Organized_by [ TEXT ] , Open_Date [ INT ] , Continuation_of [ TEXT ] | wedding : Church_ID [ INT ] primary_key wedding.Church_ID = church.Church_ID , Male_ID [ INT ] wedding.Male_ID = people.People_ID , Female_ID [ INT ] wedding.Female_ID = people.People_ID , Year [ INT ] |
-- -- Show the minimum, maximum, and average age for all people.
| SELECT min(age) , max(age) , avg(age) FROM people; |
-- Database schema
| people : People_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Is_Male [ TEXT ] , Age [ INT ] | church : Church_ID [ INT ] primary_key , Name [ TEXT ] , Organized_by [ TEXT ] , Open_Date [ INT ] , Continuation_of [ TEXT ] | wedding : Church_ID [ INT ] primary_key wedding.Church_ID = church.Church_ID , Male_ID [ INT ] wedding.Male_ID = people.People_ID , Female_ID [ INT ] wedding.Female_ID = people.People_ID , Year [ INT ] |
-- -- Show the name and country for all people whose age is smaller than the average.
| SELECT name , country FROM people WHERE age < (SELECT avg(age) FROM people); |
-- Database schema
| people : People_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Is_Male [ TEXT ] , Age [ INT ] | church : Church_ID [ INT ] primary_key , Name [ TEXT ] , Organized_by [ TEXT ] , Open_Date [ INT ] , Continuation_of [ TEXT ] | wedding : Church_ID [ INT ] primary_key wedding.Church_ID = church.Church_ID , Male_ID [ INT ] wedding.Male_ID = people.People_ID , Female_ID [ INT ] wedding.Female_ID = people.People_ID , Year [ INT ] |
-- -- Show the pair of male and female names in all weddings after year 2014
| SELECT T2.name , T3.name FROM wedding AS T1 JOIN people AS T2 ON T1.male_id = T2.people_id JOIN people AS T3 ON T1.female_id = T3.people_id WHERE T1.year > 2014; |
-- Database schema
| people : People_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Is_Male [ TEXT ] , Age [ INT ] | church : Church_ID [ INT ] primary_key , Name [ TEXT ] , Organized_by [ TEXT ] , Open_Date [ INT ] , Continuation_of [ TEXT ] | wedding : Church_ID [ INT ] primary_key wedding.Church_ID = church.Church_ID , Male_ID [ INT ] wedding.Male_ID = people.People_ID , Female_ID [ INT ] wedding.Female_ID = people.People_ID , Year [ INT ] |
-- -- Show the name and age for all male people who don't have a wedding.
| SELECT name , age FROM people WHERE is_male = 'T' AND people_id NOT IN (SELECT male_id FROM wedding); |
-- Database schema
| people : People_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Is_Male [ TEXT ] , Age [ INT ] | church : Church_ID [ INT ] primary_key , Name [ TEXT ] , Organized_by [ TEXT ] , Open_Date [ INT ] , Continuation_of [ TEXT ] | wedding : Church_ID [ INT ] primary_key wedding.Church_ID = church.Church_ID , Male_ID [ INT ] wedding.Male_ID = people.People_ID , Female_ID [ INT ] wedding.Female_ID = people.People_ID , Year [ INT ] |
-- -- Show all church names except for those that had a wedding in year 2015.
| SELECT name FROM church EXCEPT SELECT T1.name FROM church AS T1 JOIN wedding AS T2 ON T1.church_id = T2.church_id WHERE T2.year = 2015; |
-- Database schema
| people : People_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Is_Male [ TEXT ] , Age [ INT ] | church : Church_ID [ INT ] primary_key , Name [ TEXT ] , Organized_by [ TEXT ] , Open_Date [ INT ] , Continuation_of [ TEXT ] | wedding : Church_ID [ INT ] primary_key wedding.Church_ID = church.Church_ID , Male_ID [ INT ] wedding.Male_ID = people.People_ID , Female_ID [ INT ] wedding.Female_ID = people.People_ID , Year [ INT ] |
-- -- Show all church names that have hosted least two weddings.
| SELECT T1.name FROM church AS T1 JOIN wedding AS T2 ON T1.church_id = T2.church_id GROUP BY T1.church_id HAVING count(*) >= 2; |
-- Database schema
| people : People_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Is_Male [ TEXT ] , Age [ INT ] | church : Church_ID [ INT ] primary_key , Name [ TEXT ] , Organized_by [ TEXT ] , Open_Date [ INT ] , Continuation_of [ TEXT ] | wedding : Church_ID [ INT ] primary_key wedding.Church_ID = church.Church_ID , Male_ID [ INT ] wedding.Male_ID = people.People_ID , Female_ID [ INT ] wedding.Female_ID = people.People_ID , Year [ INT ] |
-- -- Show the names for all females from Canada having a wedding in year 2016.
| SELECT T2.name FROM wedding AS T1 JOIN people AS T2 ON T1.female_id = T2.people_id WHERE T1.year = 2016 AND T2.is_male = 'F' AND T2.country = 'Canada'; |
-- Database schema
| people : People_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Is_Male [ TEXT ] , Age [ INT ] | church : Church_ID [ INT ] primary_key , Name [ TEXT ] , Organized_by [ TEXT ] , Open_Date [ INT ] , Continuation_of [ TEXT ] | wedding : Church_ID [ INT ] primary_key wedding.Church_ID = church.Church_ID , Male_ID [ INT ] wedding.Male_ID = people.People_ID , Female_ID [ INT ] wedding.Female_ID = people.People_ID , Year [ INT ] |
-- -- How many weddings are there in year 2016?
| SELECT count(*) FROM wedding WHERE YEAR = 2016; |
-- Database schema
| people : People_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Is_Male [ TEXT ] , Age [ INT ] | church : Church_ID [ INT ] primary_key , Name [ TEXT ] , Organized_by [ TEXT ] , Open_Date [ INT ] , Continuation_of [ TEXT ] | wedding : Church_ID [ INT ] primary_key wedding.Church_ID = church.Church_ID , Male_ID [ INT ] wedding.Male_ID = people.People_ID , Female_ID [ INT ] wedding.Female_ID = people.People_ID , Year [ INT ] |
-- -- Show the church names for the weddings of all people older than 30.
| SELECT T4.name FROM wedding AS T1 JOIN people AS T2 ON T1.male_id = T2.people_id JOIN people AS T3 ON T1.female_id = T3.people_id JOIN church AS T4 ON T4.church_id = T1.church_id WHERE T2.age > 30 OR T3.age > 30; |
-- Database schema
| people : People_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Is_Male [ TEXT ] , Age [ INT ] | church : Church_ID [ INT ] primary_key , Name [ TEXT ] , Organized_by [ TEXT ] , Open_Date [ INT ] , Continuation_of [ TEXT ] | wedding : Church_ID [ INT ] primary_key wedding.Church_ID = church.Church_ID , Male_ID [ INT ] wedding.Male_ID = people.People_ID , Female_ID [ INT ] wedding.Female_ID = people.People_ID , Year [ INT ] |
-- -- Show all countries and the number of people from each country.
| SELECT country , count(*) FROM people GROUP BY country; |
-- Database schema
| people : People_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Is_Male [ TEXT ] , Age [ INT ] | church : Church_ID [ INT ] primary_key , Name [ TEXT ] , Organized_by [ TEXT ] , Open_Date [ INT ] , Continuation_of [ TEXT ] | wedding : Church_ID [ INT ] primary_key wedding.Church_ID = church.Church_ID , Male_ID [ INT ] wedding.Male_ID = people.People_ID , Female_ID [ INT ] wedding.Female_ID = people.People_ID , Year [ INT ] |
-- -- How many churches have a wedding in year 2016?
| SELECT COUNT (DISTINCT church_id) FROM wedding WHERE YEAR = 2016; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- How many artists do we have?
| SELECT count(*) FROM artist; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- Count the number of artists.
| SELECT count(*) FROM artist; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- Show all artist name, age, and country ordered by the yeared they joined.
| SELECT name , age , country FROM artist ORDER BY Year_Join; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- What are the names, ages, and countries of artists, sorted by the year they joined?
| SELECT name , age , country FROM artist ORDER BY Year_Join; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- What are all distinct country for artists?
| SELECT DISTINCT country FROM artist; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- Return the different countries for artists.
| SELECT DISTINCT country FROM artist; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- Show all artist names and the year joined who are not from United States.
| SELECT name , year_join FROM artist WHERE country != 'United States'; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- What are the names and year of joining for artists that do not have the country "United States"?
| SELECT name , year_join FROM artist WHERE country != 'United States'; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- How many artists are above age 46 and joined after 1990?
| SELECT count(*) FROM artist WHERE age > 46 AND year_join > 1990; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- Count the number of artists who are older than 46 and joined after 1990.
| SELECT count(*) FROM artist WHERE age > 46 AND year_join > 1990; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- What is the average and minimum age of all artists from United States.
| SELECT avg(age) , min(age) FROM artist WHERE country = 'United States'; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- Return the average and minimum ages across artists from the United States.
| SELECT avg(age) , min(age) FROM artist WHERE country = 'United States'; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- What is the name of the artist who joined latest?
| SELECT name FROM artist ORDER BY year_join DESC LIMIT 1; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- Return the name of the artist who has the latest join year.
| SELECT name FROM artist ORDER BY year_join DESC LIMIT 1; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- How many exhibition are there in year 2005 or after?
| SELECT count(*) FROM exhibition WHERE YEAR >= 2005; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- Count the number of exhibitions that happened in or after 2005.
| SELECT count(*) FROM exhibition WHERE YEAR >= 2005; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- Show theme and year for all exhibitions with ticket prices lower than 15.
| SELECT theme , YEAR FROM exhibition WHERE ticket_price < 15; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- What are the theme and year for all exhibitions that have a ticket price under 15?
| SELECT theme , YEAR FROM exhibition WHERE ticket_price < 15; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- Show all artist names and the number of exhibitions for each artist.
| SELECT T2.name , count(*) FROM exhibition AS T1 JOIN artist AS T2 ON T1.artist_id = T2.artist_id GROUP BY T1.artist_id; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- How many exhibitions has each artist had?
| SELECT T2.name , count(*) FROM exhibition AS T1 JOIN artist AS T2 ON T1.artist_id = T2.artist_id GROUP BY T1.artist_id; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- What is the name and country for the artist with most number of exhibitions?
| SELECT T2.name , T2.country FROM exhibition AS T1 JOIN artist AS T2 ON T1.artist_id = T2.artist_id GROUP BY T1.artist_id ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- Return the name and country corresponding to the artist who has had the most exhibitions.
| SELECT T2.name , T2.country FROM exhibition AS T1 JOIN artist AS T2 ON T1.artist_id = T2.artist_id GROUP BY T1.artist_id ORDER BY count(*) DESC LIMIT 1; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- Show names for artists without any exhibition.
| SELECT name FROM artist WHERE artist_id NOT IN (SELECT artist_id FROM exhibition); |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- What are the names of artists that have not had any exhibitions?
| SELECT name FROM artist WHERE artist_id NOT IN (SELECT artist_id FROM exhibition); |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- What is the theme and artist name for the exhibition with a ticket price higher than the average?
| SELECT T1.theme , T2.name FROM exhibition AS T1 JOIN artist AS T2 ON T1.artist_id = T2.artist_id WHERE T1.ticket_price > (SELECT avg(ticket_price) FROM exhibition); |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- Return the names of artists and the themes of their exhibitions that had a ticket price higher than average.
| SELECT T1.theme , T2.name FROM exhibition AS T1 JOIN artist AS T2 ON T1.artist_id = T2.artist_id WHERE T1.ticket_price > (SELECT avg(ticket_price) FROM exhibition); |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- Show the average, minimum, and maximum ticket prices for exhibitions for all years before 2009.
| SELECT avg(ticket_price) , min(ticket_price) , max(ticket_price) FROM exhibition WHERE YEAR < 2009; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- What are the average, minimum, and maximum ticket prices for exhibitions that happened prior to 2009?
| SELECT avg(ticket_price) , min(ticket_price) , max(ticket_price) FROM exhibition WHERE YEAR < 2009; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- Show theme and year for all exhibitions in an descending order of ticket price.
| SELECT theme , YEAR FROM exhibition ORDER BY ticket_price DESC; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- What are the themes and years for exhibitions, sorted by ticket price descending?
| SELECT theme , YEAR FROM exhibition ORDER BY ticket_price DESC; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- What is the theme, date, and attendance for the exhibition in year 2004?
| SELECT T2.theme , T1.date , T1.attendance FROM exhibition_record AS T1 JOIN exhibition AS T2 ON T1.exhibition_id = T2.exhibition_id WHERE T2.year = 2004; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- Return the themes, dates, and attendance for exhibitions that happened in 2004.
| SELECT T2.theme , T1.date , T1.attendance FROM exhibition_record AS T1 JOIN exhibition AS T2 ON T1.exhibition_id = T2.exhibition_id WHERE T2.year = 2004; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- Show all artist names who didn't have an exhibition in 2004.
| SELECT name FROM artist EXCEPT SELECT T2.name FROM exhibition AS T1 JOIN artist AS T2 ON T1.artist_id = T2.artist_id WHERE T1.year = 2004; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- What are the names of artists who did not have an exhibition in 2004?
| SELECT name FROM artist EXCEPT SELECT T2.name FROM exhibition AS T1 JOIN artist AS T2 ON T1.artist_id = T2.artist_id WHERE T1.year = 2004; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- Show the theme for exhibitions with both records of an attendance below 100 and above 500.
| SELECT T2.theme FROM exhibition_record AS T1 JOIN exhibition AS T2 ON T1.exhibition_id = T2.exhibition_id WHERE T1.attendance < 100 INTERSECT SELECT T2.theme FROM exhibition_record AS T1 JOIN exhibition AS T2 ON T1.exhibition_id = T2.exhibition_id WHERE T1.attendance > 500; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- Which themes have had corresponding exhibitions that have had attendance both below 100 and above 500?
| SELECT T2.theme FROM exhibition_record AS T1 JOIN exhibition AS T2 ON T1.exhibition_id = T2.exhibition_id WHERE T1.attendance < 100 INTERSECT SELECT T2.theme FROM exhibition_record AS T1 JOIN exhibition AS T2 ON T1.exhibition_id = T2.exhibition_id WHERE T1.attendance > 500; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- How many exhibitions have a attendance more than 100 or have a ticket price below 10?
| SELECT count(*) FROM exhibition_record AS T1 JOIN exhibition AS T2 ON T1.exhibition_id = T2.exhibition_id WHERE T1.attendance > 100 OR T2.ticket_price < 10; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- Count the number of exhibitions that have had an attendnance of over 100 or a ticket prices under 10.
| SELECT count(*) FROM exhibition_record AS T1 JOIN exhibition AS T2 ON T1.exhibition_id = T2.exhibition_id WHERE T1.attendance > 100 OR T2.ticket_price < 10; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- Show all artist names with an average exhibition attendance over 200.
| SELECT T3.name FROM exhibition_record AS T1 JOIN exhibition AS T2 ON T1.exhibition_id = T2.exhibition_id JOIN artist AS T3 ON T3.artist_id = T2.artist_id GROUP BY T3.artist_id HAVING avg(T1.attendance) > 200; |
-- Database schema
| artist : Artist_ID [ INT ] primary_key , Name [ TEXT ] , Country [ TEXT ] , Year_Join [ INT ] , Age [ INT ] | exhibition : Exhibition_ID [ INT ] primary_key , Year [ INT ] , Theme [ TEXT ] , Artist_ID [ INT ] exhibition.Artist_ID = artist.Artist_ID , Ticket_Price [ INT ] | exhibition_record : Exhibition_ID [ INT ] primary_key exhibition_record.Exhibition_ID = exhibition.Exhibition_ID , Date [ TEXT ] , Attendance [ INT ] |
-- -- What are the names of artist whose exhibitions draw over 200 attendees on average?
| SELECT T3.name FROM exhibition_record AS T1 JOIN exhibition AS T2 ON T1.exhibition_id = T2.exhibition_id JOIN artist AS T3 ON T3.artist_id = T2.artist_id GROUP BY T3.artist_id HAVING avg(T1.attendance) > 200; |
-- Database schema
| item : i_id [ INT ] primary_key , title [ TEXT ] | review : a_id [ INT ] primary_key , u_id [ INT ] review.u_id = useracct.u_id , i_id [ INT ] review.i_id = item.i_id , rating [ INT ] , rank [ INT ] | useracct : u_id [ INT ] primary_key , name [ TEXT ] | trust : source_u_id [ INT ] trust.source_u_id = useracct.u_id , target_u_id [ INT ] trust.target_u_id = useracct.u_id , trust [ INT ] |
-- -- Find the id of the item whose title is "orange".
| SELECT i_id FROM item WHERE title = "orange"; |
-- Database schema
| item : i_id [ INT ] primary_key , title [ TEXT ] | review : a_id [ INT ] primary_key , u_id [ INT ] review.u_id = useracct.u_id , i_id [ INT ] review.i_id = item.i_id , rating [ INT ] , rank [ INT ] | useracct : u_id [ INT ] primary_key , name [ TEXT ] | trust : source_u_id [ INT ] trust.source_u_id = useracct.u_id , target_u_id [ INT ] trust.target_u_id = useracct.u_id , trust [ INT ] |
-- -- List all information in the item table.
| SELECT * FROM item; |
-- Database schema
| item : i_id [ INT ] primary_key , title [ TEXT ] | review : a_id [ INT ] primary_key , u_id [ INT ] review.u_id = useracct.u_id , i_id [ INT ] review.i_id = item.i_id , rating [ INT ] , rank [ INT ] | useracct : u_id [ INT ] primary_key , name [ TEXT ] | trust : source_u_id [ INT ] trust.source_u_id = useracct.u_id , target_u_id [ INT ] trust.target_u_id = useracct.u_id , trust [ INT ] |
-- -- Find the number of reviews.
| SELECT count(*) FROM review; |
-- Database schema
| item : i_id [ INT ] primary_key , title [ TEXT ] | review : a_id [ INT ] primary_key , u_id [ INT ] review.u_id = useracct.u_id , i_id [ INT ] review.i_id = item.i_id , rating [ INT ] , rank [ INT ] | useracct : u_id [ INT ] primary_key , name [ TEXT ] | trust : source_u_id [ INT ] trust.source_u_id = useracct.u_id , target_u_id [ INT ] trust.target_u_id = useracct.u_id , trust [ INT ] |
-- -- How many users are there?
| SELECT count(*) FROM useracct; |
-- Database schema
| item : i_id [ INT ] primary_key , title [ TEXT ] | review : a_id [ INT ] primary_key , u_id [ INT ] review.u_id = useracct.u_id , i_id [ INT ] review.i_id = item.i_id , rating [ INT ] , rank [ INT ] | useracct : u_id [ INT ] primary_key , name [ TEXT ] | trust : source_u_id [ INT ] trust.source_u_id = useracct.u_id , target_u_id [ INT ] trust.target_u_id = useracct.u_id , trust [ INT ] |
-- -- Find the average and maximum rating of all reviews.
| SELECT avg(rating) , max(rating) FROM review; |
-- Database schema
| item : i_id [ INT ] primary_key , title [ TEXT ] | review : a_id [ INT ] primary_key , u_id [ INT ] review.u_id = useracct.u_id , i_id [ INT ] review.i_id = item.i_id , rating [ INT ] , rank [ INT ] | useracct : u_id [ INT ] primary_key , name [ TEXT ] | trust : source_u_id [ INT ] trust.source_u_id = useracct.u_id , target_u_id [ INT ] trust.target_u_id = useracct.u_id , trust [ INT ] |
-- -- Find the highest rank of all reviews.
| SELECT min(rank) FROM review; |
-- Database schema
| item : i_id [ INT ] primary_key , title [ TEXT ] | review : a_id [ INT ] primary_key , u_id [ INT ] review.u_id = useracct.u_id , i_id [ INT ] review.i_id = item.i_id , rating [ INT ] , rank [ INT ] | useracct : u_id [ INT ] primary_key , name [ TEXT ] | trust : source_u_id [ INT ] trust.source_u_id = useracct.u_id , target_u_id [ INT ] trust.target_u_id = useracct.u_id , trust [ INT ] |
-- -- How many different users wrote some reviews?
| SELECT count(DISTINCT u_id) FROM review; |
-- Database schema
| item : i_id [ INT ] primary_key , title [ TEXT ] | review : a_id [ INT ] primary_key , u_id [ INT ] review.u_id = useracct.u_id , i_id [ INT ] review.i_id = item.i_id , rating [ INT ] , rank [ INT ] | useracct : u_id [ INT ] primary_key , name [ TEXT ] | trust : source_u_id [ INT ] trust.source_u_id = useracct.u_id , target_u_id [ INT ] trust.target_u_id = useracct.u_id , trust [ INT ] |
-- -- How many different items were reviewed by some users?
| SELECT count(DISTINCT i_id) FROM review; |
-- Database schema
| item : i_id [ INT ] primary_key , title [ TEXT ] | review : a_id [ INT ] primary_key , u_id [ INT ] review.u_id = useracct.u_id , i_id [ INT ] review.i_id = item.i_id , rating [ INT ] , rank [ INT ] | useracct : u_id [ INT ] primary_key , name [ TEXT ] | trust : source_u_id [ INT ] trust.source_u_id = useracct.u_id , target_u_id [ INT ] trust.target_u_id = useracct.u_id , trust [ INT ] |
-- -- Find the number of items that did not receive any review.
| SELECT count(*) FROM item WHERE i_id NOT IN (SELECT i_id FROM review); |
-- Database schema
| item : i_id [ INT ] primary_key , title [ TEXT ] | review : a_id [ INT ] primary_key , u_id [ INT ] review.u_id = useracct.u_id , i_id [ INT ] review.i_id = item.i_id , rating [ INT ] , rank [ INT ] | useracct : u_id [ INT ] primary_key , name [ TEXT ] | trust : source_u_id [ INT ] trust.source_u_id = useracct.u_id , target_u_id [ INT ] trust.target_u_id = useracct.u_id , trust [ INT ] |
-- -- Find the names of users who did not leave any review.
| SELECT name FROM useracct WHERE u_id NOT IN (SELECT u_id FROM review); |
-- Database schema
| item : i_id [ INT ] primary_key , title [ TEXT ] | review : a_id [ INT ] primary_key , u_id [ INT ] review.u_id = useracct.u_id , i_id [ INT ] review.i_id = item.i_id , rating [ INT ] , rank [ INT ] | useracct : u_id [ INT ] primary_key , name [ TEXT ] | trust : source_u_id [ INT ] trust.source_u_id = useracct.u_id , target_u_id [ INT ] trust.target_u_id = useracct.u_id , trust [ INT ] |
-- -- Find the names of goods that receive a rating of 10.
| SELECT T1.title FROM item AS T1 JOIN review AS T2 ON T1.i_id = T2.i_id WHERE T2.rating = 10; |
Subsets and Splits