ExamplesΒΆ

examples usage below:

> # import the SQL module
> import pymonetdb
>
> # set up a connection. arguments below are the defaults
> connection = pymonetdb.connect(username="monetdb", password="monetdb",
>                                    hostname="localhost", database="demo")
>
> # create a cursor
> cursor = connection.cursor()
>
> # increase the rows fetched to increase performance (optional)
> cursor.arraysize = 100
>
> # execute a query (return the number of rows to fetch)
> cursor.execute('SELECT * FROM tables')
26
>
> # fetch only one row
> cursor.fetchone()
[1062, 'schemas', 1061, None, 0, True, 0, 0]
>
> # fetch the remaining rows
> cursor.fetchall()
[[1067, 'types', 1061, None, 0, True, 0, 0],
 [1076, 'functions', 1061, None, 0, True, 0, 0],
 [1085, 'args', 1061, None, 0, True, 0, 0],
 [1093, 'sequences', 1061, None, 0, True, 0, 0],
 [1103, 'dependencies', 1061, None, 0, True, 0, 0],
 [1107, 'connections', 1061, None, 0, True, 0, 0],
 [1116, '_tables', 1061, None, 0, True, 0, 0],
 ...
 [4141, 'user_role', 1061, None, 0, True, 0, 0],
 [4144, 'auths', 1061, None, 0, True, 0, 0],
 [4148, 'privileges', 1061, None, 0, True, 0, 0]]
>
> # Show the table meta data
> cursor.description
[('id', 'int', 4, 4, None, None, None),
 ('name', 'varchar', 12, 12, None, None, None),
 ('schema_id', 'int', 4, 4, None, None, None),
 ('query', 'varchar', 168, 168, None, None, None),
 ('type', 'smallint', 1, 1, None, None, None),
 ('system', 'boolean', 5, 5, None, None, None),
 ('commit_action', 'smallint', 1, 1, None, None, None),
 ('temporary', 'tinyint', 1, 1, None, None, None)]

If you would like to communicate with the database at a lower level you can use the MAPI library:

> from pymonetdb import mapi
> server = mapi.Connection()
> server.connect(hostname="localhost", port=50000, username="monetdb",
                 password="monetdb", database="demo", language="sql")
> server.cmd("sSELECT * FROM tables;")
...