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  • mysql 存储过程 有数据修改 没数据插入

    BEGIN
      DECLARE sid INT(10) DEFAULT  0;
      DECLARE money INT(10) DEFAULT  0;
      DECLARE row_count INT;
      DECLARE done INT DEFAULT FALSE;#默认游标读出有记录
      DECLARE cur_order CURSOR  for  
        SELECT m.id,sum(o.price) money from ims_bj_shopn_order as o LEFT JOIN ims_bj_shopn_member as m on o.uid=m.id where o.status in ('1','2','3','6','7') and (m.isadmin=1 or m.id=m.staffid) and o.createtime BETWEEN 1514736000 and 1546271999  GROUP BY o.uid ORDER BY money desc;
        DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;-- 绑定控制变量到游标,游标循环结束自动转true
      #select cur_order;
        open cur_order;-- 打开游标
        myLoop:LOOP -- 开始循环体,myLoop为自定义循环名,结束循环时用到
            FETCH cur_order INTO sid,money; -- 将游标当前读取行的数据顺序赋予自定义变量
            IF done THEN -- 判断是否继续循环
                        LEAVE myLoop; -- 结束循环
                    END IF;
                    -- 自己要做的事情,在 sql 中直接使用自定义变量即可
                    SELECT count(*) INTO row_count from think_purchase_amount where sellerid=sid;
                    IF (row_count=0) THEN
                        INSERT INTO think_purchase_amount(sellerid,count,year) VALUES(sid,money,2018);  
                 ELSE
                        UPDATE think_purchase_amount  SET  count=count+money,year=2018 WHERE sellerid=sid;
                    END IF;
        END LOOP myLoop;-- 结束自定义循环体
      CLOSE cur_order;-- 关闭游标
    END
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  • 原文地址:https://www.cnblogs.com/houdj/p/9994825.html
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