# 定义函数,将e_crp表的mes_msg_id 从1开始循环累加
DROP PROCEDURE
IF EXISTS `updateErp`;
DELIMITER ;;
CREATE PROCEDURE `updateErp` ()
BEGIN
DECLARE ListCount INT ;
DECLARE iRow INT ;
DECLARE temp_id INT ; -- 判断游标到达最后的情况
DECLARE _STOP INT DEFAULT 0 ;
DECLARE cur1 CURSOR FOR (SELECT id FROM e_crp) ; -- 设置游标的终止条件
DECLARE CONTINUE HANDLER FOR NOT FOUND SET _STOP = 1 ; -- 获取 e_crp 表的记录数
SELECT count(*) INTO ListCount FROM e_crp ;
SET iRow = 1 ;
OPEN cur1 ;
FETCH cur1 INTO temp_id ; -- 遍历e_crp表
WHILE iRow <= ListCount DO
UPDATE e_crp
SET mes_msg_id = iRow
WHERE
id = temp_id ;
SET iRow = iRow + 1 ; FETCH cur1 INTO temp_id ;
END
WHILE ; CLOSE cur1 ; COMMIT ;
END;;
DELIMITER ;
-- 执行函数
CALL updateErp();