| """ 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 = {} |
| 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" |
| ) |
| kw_args.setdefault("table_name", "Products") |
|
|
| |
| provider_switch = ["provider", "Microsoft.ACE.OLEDB.12.0", "Microsoft.Jet.OLEDB.4.0"] |
|
|
| |
| |
| 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: |
| |
| with con.cursor() as c: |
|
|
| |
| sql = "select * from %s" % kw_args["table_name"] |
| print('performing query="%s"' % sql) |
| c.execute(sql) |
|
|
| |
| 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...") |
|
|
| |
| db = c.fetchmany(5) |
|
|
| |
| for rec in db: |
| print(rec) |
|
|
| print("") |
| print("repr() of next row is...") |
| print(repr(c.fetchone())) |
| print("") |
| con.close() |
|
|