db.py 文件源码

def _test(self):
        """Test LIMIT.

            Fake presence of pymssql module for running tests.
            >>> import sys
            >>> sys.modules['pymssql'] = sys.modules['sys']

            MSSQL has TOP clause instead of LIMIT clause.
            >>> db = MSSQLDB(db='test', user='joe', pw='secret')
            >>> db.select('foo', limit=4, _test=True)
            <sql: 'SELECT * TOP 4 FROM foo'>
        """
        pass