『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');