『转』MySQL存储过程语法例子

原文地址：http://blog.chinaunix.net/uid-540802-id-138873.html

------------------------- 自动生成随机数据存储过程 -------------------------
drop PROCEDURE if exists genRand;
delimiter //
create PROCEDURE genRand(in rank int, in add_num int, in statTime char(10))
-- rank:随机最大邮件数, add_num:生成条数, startTime:统计数据日期
Begin
    declare mobile long;
    declare tmp int;
    set mobile = 13600000000;
    set tmp = 1;
    -- delete from ippush_stats_email;
    while tmp <= add_num do
        insert into ippush_stats_email values(mobile + tmp, 1, now(), statTime,
                                                  random_int(rank), random_int(rank), random_int(rank), random_int(rank),random_int(rank),
                                                  random_int(rank), random_int(rank), random_int(rank), random_int(rank),random_int(rank), 
                                                  random_int(rank), random_int(rank), random_int(rank), random_int(rank),random_int(rank), 
                                                  random_int(rank), random_int(rank), random_int(rank), random_int(rank),random_int(rank), 
                                                  random_int(rank), random_int(rank), random_int(rank), random_int(rank) );
        set tmp = tmp + 1;
    end while;
end//
delimiter ;
call genRand(10, 10, '2010-10-6');

------------------------- 统计从time1到time2时段的 -------------------------
drop PROCEDURE if exists doStats;
delimiter //
create PROCEDURE doStats(in time1 char(10), in time2 char(10))
Begin
    declare _mobile char(11);
    declare _sums int;
    declare _stat_time date;
    declare _count int;
    declare _user_type int;
    declare fetchSeqOk int;
    declare fetchSeqCursor cursor for 
                                select mobile, count(*) as count, user_type, stat_time, max((clock_1 + clock_2 + clock_3+clock_4+clock_5+clock_6+clock_7+clock_8+clock_9+
                                    clock_10+clock_11+clock_12+clock_13+clock_14+clock_15+clock_16+clock_17+clock_18+clock_19+
                                    clock_20+clock_21+clock_22+clock_23+clock_24)) as sums 
                                from ippush_stats_email
                                where stat_time >= time1 and stat_time <= time2
                                group by mobile;
    declare CONTINUE HANDLER FOR NOT FOUND SET fetchSeqOk = 0;

set fetchSeqOk = 1;
    open fetchSeqCursor;
    while fetchSeqOk = 1 do
            fetch fetchSeqCursor into _mobile, _count, _user_type, _stat_time, _sums;
            if _sums > 30 then
                call onelineStat(1, _user_type, time1, time2, _mobile);
            else
                call onelineStat(2, _user_type, time1, time2, _mobile);
            end if;
    end while;
    close fetchSeqCursor;
end//
delimiter ;
call doStats('2010-10-01', '2010-11-05');

------------------------- 一条业务线的统计 --------------------------
drop PROCEDURE if exists onelineStat;
delimiter //
create PROCEDURE onelineStat(in type int, in inuser_type int, in time1 char(10), in time2 char(10), in inmobile char(11))
Begin
    if inuser_type = 1 then -- is mas user
        if type = 1 then -- is level 1
            insert into ippush_strategy (select mobile, inuser_type, concat(max(clock_1)>=4,
                    max(clock_2)>=4,
                    max(clock_3)>=4,
                    max(clock_4)>=4,
                    max(clock_5)>=4,
                    max(clock_6)>=4,
                    max(clock_7)>=4,
                    max(clock_8)>=4,
                    '111111111',
                    max(clock_19)>=4,
                    max(clock_20)>=4,
                    max(clock_21)>=4,
                    max(clock_22)>=4,
                    max(clock_23)>=4,
                    max(clock_24)>=4), now(), time1, time2
                from ippush_stats_email
                where mobile = inmobile and stat_time >= time1 and stat_time <= time2 and user_type = inuser_type
                group by mobile ) ;
        else
            insert into ippush_strategy ( select mobile, inuser_type, concat(max(clock_1)>=4,
                    max(clock_2)>=4,
                    max(clock_3)>=4,
                    max(clock_4)>=4,
                    max(clock_5)>=4,
                    max(clock_6)>=4,
                    max(clock_7)>=4,
                    max(clock_8)>=4,
                    max(clock_9)>=4,
                    max(clock_10)>=4,
                    max(clock_11)>=4,
                    max(clock_12)>=4,
                    max(clock_13)>=4,
                    max(clock_14)>=4,
                    max(clock_15)>=4,
                    max(clock_16)>=4,
                    max(clock_17)>=4,
                    max(clock_18)>=4,
                    max(clock_19)>=4,
                    max(clock_20)>=4,
                    max(clock_21)>=4,
                    max(clock_22)>=4,
                    max(clock_23)>=4,
                    max(clock_24)>=4), now(), time1, time2
                from ippush_stats_email
                where mobile = inmobile and stat_time >= time1 and stat_time <= time2 and user_type = inuser_type
                group by mobile ) ;
        end if;
   else -- is mig user
        if type = 1 then
            insert into ippush_strategy values(inmobile, inuser_type, '111111111111111111111111', now, time1, time2);
        end if;
   end if;
end//
delimiter ;

------------------ 调用 --------------------
call onelineStat(1, 1, '2010-10-01', '2010-11-05', '13600000001');