MySQL 存储过程，参数无效，求解
<code> DROP PROCEDURE IF EXISTS market.app_get_list;
DELIMITER //
CREATE PROCEDURE market.app_get_list(IN orders VARCHAR(20), IN type TINYINT, IN offset INT, IN rows INT)
BEGIN
DECLARE done INT DEFAULT 0;
DECLARE pack VARCHAR(40);
DECLARE packages CURSOR FOR SELECT DISTINCT package FROM market_app ORDER BY orders DESC LIMIT offset, rows;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = 1;
OPEN packages;
REPEAT
FETCH packages INTO pack;
IF NOT done THEN
SELECT * FROM market_app WHERE package = pack ORDER BY versioncode DESC LIMIT 1;
END IF;
UNTIL done END REPEAT;
CLOSE packages;
END//
DELIMITER ;
</code>现在参数orders不起作用，麻烦懂的人帮忙修改下，谢谢哈。
回复内容：
<code> DROP PROCEDURE IF EXISTS market.app_get_list;
DELIMITER //
CREATE PROCEDURE market.app_get_list(IN orders VARCHAR(20), IN type TINYINT, IN offset INT, IN rows INT)
BEGIN
DECLARE done INT DEFAULT 0;
DECLARE pack VARCHAR(40);
DECLARE packages CURSOR FOR SELECT DISTINCT package FROM market_app ORDER BY orders DESC LIMIT offset, rows;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = 1;
OPEN packages;
REPEAT
FETCH packages INTO pack;
IF NOT done THEN
SELECT * FROM market_app WHERE package = pack ORDER BY versioncode DESC LIMIT 1;
END IF;
UNTIL done END REPEAT;
CLOSE packages;
END//
DELIMITER ;
</code>现在参数orders不起作用，麻烦懂的人帮忙修改下，谢谢哈。
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