[mysql5] user defined function per hash

[Trinità76]

sto provando con questa...

CREATE PROCEDURE test.HASH(IN len INT, IN counter INT)
READS SQL DATA
COMMENT ''
BEGIN
  DECLARE done INT DEFAULT 0;
  DECLARE i INT DEFAULT 0;
  DECLARE h VARCHAR(24);
  SET @s = CONCAT('SELECT SUBSTRING(MD5(RAND()), -',len,') AS h');
  SET i = 0;

  DECLARE sql1 CURSOR FOR @s;
  
  CREATE TEMPORARY TABLE IF NOT EXISTS `hashes` (
    `id` int(10) NOT NULL auto_increment,
    `hash` varchar(24) NOT NULL,
    PRIMARY KEY  (`id`),
    UNIQUE KEY `hash` (`hash`)
  );
  
  OPEN sql1;
  
  hash_loop: LOOP
  FETCH sql1 INTO h;
  
  INSERT IGNORE INTO hashes VALUES( h );

  SET i = i+1;
  
  IF i=counter THEN
    SET done=1;
    LEAVE hash_loop;
  END IF;
  
  END LOOP hash_loop;
  CLOSE sql1;
  
  SELECT * FROM hashes;
  DROP TABLE hashes;
  
END; 

ma mi restituisce MySql error number 1064: errore di sintassi vicino declare sql1.....