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| """ db_print.py -- a simple demo for ADO database reads.""" | |
| import sys | |
| import adodbapi.ado_consts as adc | |
| cmd_args = ("filename", "table_name") | |
| if "help" in sys.argv: | |
| print("possible settings keywords are:", cmd_args) | |
| sys.exit() | |
| kw_args = {} # pick up filename and proxy address from command line (optionally) | |
| for arg in sys.argv: | |
| s = arg.split("=") | |
| if len(s) > 1: | |
| if s[0] in cmd_args: | |
| kw_args[s[0]] = s[1] | |
| kw_args.setdefault( | |
| "filename", "test.mdb" | |
| ) # assumes server is running from examples folder | |
| kw_args.setdefault("table_name", "Products") # the name of the demo table | |
| # the server needs to select the provider based on his Python installation | |
| provider_switch = ["provider", "Microsoft.ACE.OLEDB.12.0", "Microsoft.Jet.OLEDB.4.0"] | |
| # ------------------------ START HERE ------------------------------------- | |
| # create the connection | |
| constr = "Provider=%(provider)s;Data Source=%(filename)s" | |
| import adodbapi as db | |
| con = db.connect(constr, kw_args, macro_is64bit=provider_switch) | |
| if kw_args["table_name"] == "?": | |
| print("The tables in your database are:") | |
| for name in con.get_table_names(): | |
| print(name) | |
| else: | |
| # make a cursor on the connection | |
| with con.cursor() as c: | |
| # run an SQL statement on the cursor | |
| sql = "select * from %s" % kw_args["table_name"] | |
| print('performing query="%s"' % sql) | |
| c.execute(sql) | |
| # check the results | |
| print( | |
| 'result rowcount shows as= %d. (Note: -1 means "not known")' % (c.rowcount,) | |
| ) | |
| print("") | |
| print("result data description is:") | |
| print(" NAME Type DispSize IntrnlSz Prec Scale Null?") | |
| for d in c.description: | |
| print( | |
| ("%16s %-12s %8s %8d %4d %5d %s") | |
| % (d[0], adc.adTypeNames[d[1]], d[2], d[3], d[4], d[5], bool(d[6])) | |
| ) | |
| print("") | |
| print("str() of first five records are...") | |
| # get the results | |
| db = c.fetchmany(5) | |
| # print them | |
| for rec in db: | |
| print(rec) | |
| print("") | |
| print("repr() of next row is...") | |
| print(repr(c.fetchone())) | |
| print("") | |
| con.close() | |