mysql 游标查询

引用:http://blog.csdn.net/a600423444/article/details/6424360

2011-05-16 14:46 1203人阅读 评论(0) 收藏 举报

mysql存储float

 

CREATE PROCEDURE update_pointer()
BEGIN
    /* 定义变量一 */
    DECLARE  total float;
    DECLARE  uid int;
    DECLARE  _done int default 0;
    DECLARE currentP int default 0;
    DECLARE firstid int;
    DECLARE secondid int;
    DECLARE parentId VARCHAR(16);
    DECLARE first_jj_yy int default 0;#第一程基建燃油费
    DECLARE second_jj_ry int default 0;#第二程基建燃油费
    /* 定义光标 */
    DECLARE _Cur CURSOR FOR
            SELECT aliTotal,ordUID,flightId,backFliId FROM fightorder WHERE ordState=4;#主订单查询
    DECLARE _CurRex CURSOR FOR
        SELECT oeactTotal,ordId FROM flight_orderex WHERE oeState=4;


    DECLARE CONTINUE HANDLER FOR SQLSTATE '02000' SET _done = 1;#错误定义，标记循环结束

    /* 打开光标 */
    OPEN _Cur;
         /* 循环执行 */
         REPEAT
            FETCH _Cur INTO total, uid, firstid, secondid;
            IF NOT _done THEN
                IF total>0 AND uid>0 THEN
                    SELECT fcn+fyq into first_jj_yy FROM flightlist WHERE flightId=firstid limit 1;
                    IF secondid>0 THEN
                        SELECT fcn+fyq into second_jj_ry FROM flightlist WHERE flightId=firstid limit 1;
                    END IF;
                    UPDATE sysusers SET integral=(integral+total)-(second_jj_ry+first_jj_yy) WHERE sysusers.UID=uid;
                END IF;
            END IF;
         UNTIL _done END REPEAT; #当_done=1时退出被循
    /*关闭光标*/
    CLOSE _Cur;
    SET _done = 0;#只有定义为0，新的循环才能继续。
    OPEN _CurRex;
    REPEAT
        FETCH _CurRex INTO total,parentId;
        IF NOT _done THEN
            #IF total > 0 THEN
                SELECT ordUID into uid FROM fightorder WHERE fightorder.alipayNo=parentId limit 1;#查询用户UID
                #INSERT INTO test values(total,uid);
                UPDATE sysusers SET integral=integral+total WHERE sysusers.UID=uid;#新增积分
            #END IF;
        END IF;
    UNTIL _done END REPEAT;
    CLOSE _CurRex;
END