mysql 存儲過程 循環

網摘
DELIMITER $$

CREATE DEFINER=`root`@`%` PROCEDURE `sp_pament_TrainFee`()
BEGIN
/*局部變量的定義 declare*/
declare strYear int;
declare strEnrollID int;
declare feesum int;
declare stop int default 0;
declare cur cursor for(
select  year ,EnrollID ,sum(Fee) from trainmanage  where ReturnStatus !=1 group by Year,EnrollID );
 /*這把 游標 異常后 捕捉
         *        並設置 循環使用 變量 stop 為 null 跳出循環。
*/
declare CONTINUE HANDLER FOR SQLSTATE '02000' SET stop = null;
/*開游標*/
OPEN cur;
/*游標向下走一步，將查詢出來的值付給定義的變量*/
    FETCH cur INTO strYear,strEnrollID,feesum;
    WHILE ( stop is not null) DO
    update payment  set  ExpectTrain=feesum   where EnrollID = strEnrollID and right(ID,2) =right(strYear,2) ;
    FETCH cur INTO strYear,strEnrollID,feesum;
    END WHILE;
/*游標向下走一步*/
CLOSE cur;
END