zoukankan      html  css  js  c++  java
  • mysql 触发器检测表数据添加,进而调用存储过程检测数据,进而调用存储过程添加数据

    触发器:

    begin
    DECLARE user_mes INT(64);
    SELECT user_id into user_mes FROM order_orderlist where id = new.order_orderlist_id limit 1;
    Call ListenOrder(user_mes,new.goods_good_id);
    end

    数据监测存储过程:

    CREATE DEFINER=`root`@`localhost` PROCEDURE `ListenOrder`(IN `user_id` int,IN `goods_good_id` int)
    BEGIN
    DECLARE _word INT;
    DECLARE tmpid INT;
    DECLARE course_id INT;
    DECLARE goods_mes varchar(64);
    DECLARE done INT DEFAULT FALSE;
    DECLARE cur_course CURSOR FOR select id,good_ids from col_course where good_ids <> '';
    DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;

    OPEN cur_course;
    read_loop: LOOP
    FETCH NEXT from cur_course INTO course_id,goods_mes;
    IF done THEN
    LEAVE read_loop;
    END IF;

    SET _word = LOCATE(',',goods_mes);
    WHILE _word > 0
    DO
    SET tmpid = SUBSTR(goods_mes,1,_word-1);
    IF tmpid = goods_good_id THEN
    CALL AddUserCourse(user_id,course_id);
    END if;
    SET goods_mes = SUBSTR(goods_mes FROM _word+1);
    SET _word = LOCATE(',',goods_mes);
    END WHILE;
    IF goods_mes = goods_good_id THEN
    CALL AddUserCourse(user_id,course_id);
    END if;
    END LOOP;
    CLOSE cur_course;

    END

    数据添加存储过程:

    CREATE DEFINER=`root`@`localhost` PROCEDURE `AddUserCourse`(IN `user_id` int,IN `course_id` int)
    BEGIN
    INSERT into col_usercourse (user_id,course_id,createtime,`status`) VALUES(user_id,course_id,unix_timestamp(now()),'1');
    END

  • 相关阅读:
    POJ3122贪心或者二分(分蛋糕)
    POJ2118基础矩阵快速幂
    POJ2118基础矩阵快速幂
    POJ1328贪心放雷达
    POJ1328贪心放雷达
    hdu4642博弈(矩阵)
    hdu4642博弈(矩阵)
    POJ1042 贪心钓鱼
    POJ3160强连通+spfa最长路(不错)
    POJ3114强连通+spfa
  • 原文地址:https://www.cnblogs.com/daochong/p/10314991.html
Copyright © 2011-2022 走看看