Question

我正在处理一些代码，并且遇到了这个存储过程问题...现在花了很长时间看着它，所以如果有人能告诉我这是一个菜鸟的话，那就请。

我收到以下错误：

错误代码：1064 您的SQL语法有错误;检查与您的MySQL服务器版本对应的手册，以便在'@ownerid varchar（50）附近使用正确的语法; 声明@active tinyint; 声明@subuser tinyint; 设置'第4行

关于此代码：

    DELIMITER //

USE `test`//

DROP PROCEDURE IF EXISTS `getAccount`//

CREATE DEFINER=`peter`@`%` PROCEDURE `getAccount`( IN cid VARCHAR(20))
BEGIN
    DECLARE cardid VARCHAR(50);
    DECLARE @ownerid VARCHAR(50);
    DECLARE @active TINYINT;
    DECLARE @subuser TINYINT;
    SET cardid = MD5( cid + SHA1(cid + 'a salt value'));

    SELECT @active = active, @ownerid = ownerid, @subuser = subuser FROM cards_tbl WHERE cardhash = cardid;

    IF @active = 1 THEN
        IF @subuser = 1 THEN
            SELECT subuser_m2s_tbl.name,subuser_m2s_tbl.image, user_saldo.saldo AS credits FROM subuser_m2s_tbl 
            JOIN user_saldo ON subuser_m2s_tbl.subhash = user_saldo.userhash 
            WHERE subuser_m2s_tbl.subhash = @ownerid;
        ELSE
            SELECT user_m2s_tbl.name,user_m2s_tbl.image, user_saldo.saldo AS credits FROM user_m2s_tbl 
            JOIN user_saldo ON user_m2s_tbl.userhash = user_saldo.userhash 
            WHERE user_m2s_tbl.userhash = @ownerid; 
        END IF;
    END IF; 
    END$$

DELIMITER ;

是存储过程的新手，所以它非常简单..... 提前致谢

Answer 1

你应该使用＆＃39;：=＆＃39;而不是＆＃39; =＆＃39;当你想在SELECT语句中将值传递给变量时，否则MySQL只会与操作数进行比较。

SELECT
  active_var := active, ownerid_var := ownerid, subuser_var := subuser
FROM
  cards_tbl
WHERE
  cardhash = cardid;

您也可以使用SELECT INTO语句，例如 -

SELECT
  active, ownerid, subuser
INTO
  active_var, ownerid_var, subuser_var
FROM
  cards_tbl
WHERE
  cardhash = cardid;

SELECT syntax

Answer 2

可能是失踪的@

DECLARE cardid VARCHAR(50);

...

DECLARE @cardid VARCHAR(50);

Mysql存储过程错误1064

2 个答案: