DELIMITER $$
USE `tongliaograin`$$
DROP PROCEDURE IF EXISTS `A_Sys_GetAdminValidate`$$
CREATE DEFINER=`root`@`%` PROCEDURE `A_Sys_GetAdminValidate`(IN `sLoginName` VARCHAR(100),IN `sPassword` VARCHAR(100),IN `sIP` VARCHAR(100))
BEGIN
DECLARE nNum INT DEFAULT 0;
DECLARE nAdminID INT DEFAULT 0;
DECLARE slogcontent VARCHAR(100) DEFAULT ""
 
;
SELECT * FROM sys_admin WHERE LoginName = sLoginName AND `password`=sPassword;
SELECT COUNT(*) INTO nNum FROM sys_admin WHERE LoginName = sLoginName AND `password`=sPassword;
IF(nNum > 0) THEN 
SELECT CAST(AdminID AS SIGNED) INTO nAdminID FROM sys_admin WHERE LoginName = sLoginName AND `password`=sPassword;
SET slogcontent 
 
= CONCAT(‘【用戶登錄】後臺用戶:‘,sLoginName,‘IP地址為：‘,sIP,‘ 登錄成功‘);
CALL A_SysLog_Add(12,nAdminID,slogcontent);
END IF;
END$$

DELIMITER ;

1、開頭和結尾需要用到 DELIMITER $$ 和 DELIMITER ;

2、存儲過程參數，必須有in out inout ，參數名必須用 “·”符號包起來，而且必須聲明參數類型及其長度

mysql 新建存儲過程中容易出錯的地方