mysql异常处理

Posted 2020-08-23

 

CREATE DEFINER=`root`@`localhost` PROCEDURE `pr_exception`(i_date varchar(10),out o_error_code  varchar(200),out o_error_msg  varchar(200))
BEGIN

-- 自定义异常
DECLARE my_error CONDITION FOR SQLSTATE ‘45000‘;
 DECLARE EXIT HANDLER FOR my_error
 begin 
 set o_error_code:=-100,o_error_msg:=‘自定义错误信息‘;
 ROLLBACK ;
 end;
 
-- 定义异常
 DECLARE EXIT HANDLER for SQLEXCEPTION
  BEGIN
      GET DIAGNOSTICS CONDITION 1
        o_error_code = RETURNED_SQLSTATE, o_error_msg = MESSAGE_TEXT;
        rollback; -- 回滚
    END;

    
 START TRANSACTION; -- 开启事务

if i_date =‘0‘ then
SIGNAL my_error; -- 触发自定义异常
end if;

insert into acc_cellstk (fundid_) values(1);  -- 正确sql
insert into acc_cellstk (fundid_) values(‘s‘);  -- 错误sql 引发异常
 
commit;
END