mysql>mysql> delimiter $$mysql>mysql> CREATE PROCEDURE set_col_value  ->    (in_table   VARCHAR(128),  ->     in_column  VARCHAR(128),  ->     in_new_value VARCHAR(1000),  ->     in_where   VARCHAR(4000))  ->  -> BEGIN  ->  DECLARE l_sql VARCHAR(4000);  ->  SET l_sql=CONCAT_ws(' ',  ->        'UPDATE',in_table,  ->          'SET',in_column,'=',in_new_value,  ->        ' WHERE',in_where);  ->  SET @sql=l_sql;  ->  PREPARE s1 FROM @sql;  ->  EXECUTE s1;  ->  DEALLOCATE PREPARE s1;  -> END$$Query OK, 0 rows affected (0.00 sec)