private function _deleteMigrationRecord( $class )
    {
        $name = $this->db->prepareString( $class );
        
        $query = "DELETE FROM $this->migrationTable WHERE migration_name = '$name'";
        
        $this->db->lockTables( $this->migrationTable );
        
        $result = $this->db->execute( $query );
        
        if ( $this->verbose )
        {
            echo 'Deleting: ' . $class . PHP_EOL;
        }
        
        $this->db->unlockTables();
        
        return $result === 1;
    }