MySQL Search and Replace Stored Procedure

I frequently need to do global search and replaces across a single database, so I wrote a stored procedure to do this for me:

####
# CALL THIS SP USING THE FOLLOWING SYNTAX
# sp_DbSearchReplace('oldText','NewText');
####

DELIMITER $$

DROP PROCEDURE IF EXISTS `YOUR_DB_NAME_HERE`.`sp_DbSearchReplace` $$
CREATE PROCEDURE `YOUR_DB_NAME_HERE`.`sp_DbSearchReplace` (IN oldString VARCHAR(255), IN newString VARCHAR(255))
BEGIN

# regular vars
DECLARE nDone INT;
DECLARE sTable VARCHAR(64);
DECLARE sColumn VARCHAR(64);

#cursors
DECLARE cTables CURSOR FOR
  SELECT TABLE_NAME, COLUMN_NAME
  FROM information_schema.COLUMNS
  WHERE information_schema.COLUMNS.TABLE_SCHEMA = 'YOUR_DB_NAME_HERE';

#handlers
DECLARE CONTINUE HANDLER FOR NOT FOUND SET nDone = 1;

OPEN cTables;

  REPEAT
    FETCH cTables INTO sTable, sColumn;
      SET @sQuery = CONCAT('UPDATE ',sTable ,' SET ' ,sColumn,
		' = REPLACE(',sColumn,',\'',oldString,'\',\'',newString,'\');');
      PREPARE stmt FROM @sQuery;
      EXECUTE stmt;
      DEALLOCATE PREPARE stmt;
    UNTIL nDone = 1
  END REPEAT;

CLOSE cTables;

END $$

DELIMITER ;