1、错误描述
14:07:26 Apply changes to rand_string Error 1313: RETURN is only allowed in a FUNCTION SQL Statement: CREATE PROCEDURE `rand_string` (n int) BEGIN DECLARE chars varchar(100) DEFAULT 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; DECLARE return_str varchar(255) DEFAULT ''; DECLARE i INT DEFAULT 0; WHILE i < n DO SET return_str = concat(return_str,substring(chars , FLOOR(1 + RAND()*52 ),1)); SET i = i +1; END WHILE; RETURN return_str; END
2、错误原因
由上述可知，RETURN仅仅只能在函数SQL语句里用
3、解决办法
修改存储过程，去掉RETURN值
