工作3年来,遇到最棘手的查询。。。

s330k 2010-12-27 06:23:09


这张表 很有长。。。。

列:登录时间,用户ID

现在要统计 今天 每隔 5分钟内的 登录人数

如下:
登录时间段 登录总人数
00:00:00 10
00:00:05 14
00:00:10 23
..................
..................
..................


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isxiaoming 2010-12-28
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学习了 以前都是用程序去处理的。。。
jiao3630 2010-12-28
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学习
fa_ge 2010-12-28
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--借楼上数据一用

--> 测试数据: @table
declare @t table (dt datetime,id int)
insert into @t
select '2010-12-27 00:00:02',37017 union all
select '2010-12-27 00:01:00',37018 union all
select '2010-12-27 00:03:33',37019 union all
select '2010-12-27 00:04:05',37020 union all
select '2010-12-27 00:04:14',37021 union all
select '2010-12-27 00:06:11',37022 union all
select '2010-12-27 00:08:01',37023 union all
select '2010-12-27 00:08:11',37024 union all
select '2010-12-27 00:09:16',37025 union all
select '2010-12-27 00:10:12',37026 union all
select '2010-12-27 00:10:13',37027 union all
select '2010-12-27 00:12:55',37028 union all
select '2010-12-27 00:13:58',37029 union all
select '2010-12-27 00:16:13',37032

SELECT MIN(DT)'开始时间',max(dt)'结束时间',count(1)总数 FROM @t
--WHERE DATEDIFF(DAY,DT,GETDATE())=0
GROUP BY DATEPART(minute,DT)/5+1

/*

开始时间 结束时间 总数
------------------------------------------------------ ------------------------------------------------------ -----------
2010-12-27 00:00:02.000 2010-12-27 00:04:14.000 5
2010-12-27 00:06:11.000 2010-12-27 00:09:16.000 4
2010-12-27 00:10:12.000 2010-12-27 00:13:58.000 4
2010-12-27 00:16:13.000 2010-12-27 00:16:13.000 1

(所影响的行数为 4 行)
*/
qifachen 2010-12-28
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select Logindate=dateadd(mi,-datepart(mi,dt)%5,convert(varchar(16),dt,120)),loginall=count(1)
from mytable group by dateadd(mi,-datepart(mi,dt)%5,convert(varchar(16),dt,120))

coleling 2010-12-28
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create table tb(dt datetime,id int)
insert into tb
select '2010-12-27 00:00:02',37017 union all
select '2010-12-27 00:01:00',37018 union all
select '2010-12-27 00:03:33',37019 union all
select '2010-12-27 00:04:05',37020 union all
select '2010-12-27 00:04:14',37021 union all
select '2010-12-27 00:06:11',37022 union all
select '2010-12-27 00:08:01',37023 union all
select '2010-12-27 00:08:11',37024 union all
select '2010-12-27 00:09:16',37025 union all
select '2010-12-27 00:10:12',37026 union all
select '2010-12-27 00:10:13',37027 union all
select '2010-12-27 00:12:55',37028 union all
select '2010-12-27 00:13:58',37029 union all
select '2010-12-27 00:16:13',37032
go

select 登录时间段=dateadd(mi,-datepart(mi,dt)%5,convert(varchar(16),dt,120)),登录总人数=count(1)
from tb
--where cast(dt as int) = cast(getdate() as int) 可以在这里限定是今天
group by dateadd(mi,-datepart(mi,dt)%5,convert(varchar(16),dt,120))

/*
登录时间段 登录总人数
----------------------- -----------
2010-12-27 00:00:00.000 5
2010-12-27 00:05:00.000 4
2010-12-27 00:10:00.000 4
2010-12-27 00:15:00.000 1

(4 行受影响)
*/


记得结贴哦!
叶子 2010-12-27
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如果要取当天的用getdate()做变量就可以了,
但是对于现在的测试数据,如果用getdate()做参数,明天你再执行的时候,就得不到数据了。
叶子 2010-12-27
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优化一下:

declare @table table (dtime datetime,id int)
insert into @table
select '2010-12-27 00:00:02',37017 union all
select '2010-12-27 00:01:00',37018 union all
select '2010-12-27 00:03:33',37019 union all
select '2010-12-27 00:04:05',37020 union all
select '2010-12-27 00:04:14',37021 union all
select '2010-12-27 00:06:11',37022 union all
select '2010-12-27 00:08:01',37023 union all
select '2010-12-27 00:08:11',37024 union all
select '2010-12-27 00:09:16',37025 union all
select '2010-12-27 00:10:12',37026 union all
select '2010-12-27 00:10:13',37027 union all
select '2010-12-27 00:12:55',37028 union all
select '2010-12-27 00:13:58',37029 union all
select '2010-12-27 00:16:13',37032

declare @table1 table(btime datetime)
declare @time datetime
set @time='2010-12-27 00:00:00'
while @time<dateadd(d,1,'2010-12-27')
begin
insert into @table1 select @time
set @time=dateadd(n,5,@time)
end

select convert(varchar(5),btime,108)+' 到 '+
convert(varchar(5),dateadd(n,5,btime),108) as 登录时间段 ,
(select count(*) from @table
where dtime between a.btime and dateadd(n,5,a.btime)) as 登录总人数
from @table1 a

/*
登录时间段 登录总人数
-------------- -----------
00:00 到 00:05 5
00:05 到 00:10 4
00:10 到 00:15 4
00:15 到 00:20 1
00:20 到 00:25 0
00:25 到 00:30 0
00:30 到 00:35 0
00:35 到 00:40 0
00:40 到 00:45 0
00:45 到 00:50 0
00:50 到 00:55 0
00:55 到 01:00 0
01:00 到 01:05 0
01:05 到 01:10 0
01:10 到 01:15 0
01:15 到 01:20 0
01:20 到 01:25 0
01:25 到 01:30 0
01:30 到 01:35 0
01:35 到 01:40 0
01:40 到 01:45 0
01:45 到 01:50 0
01:50 到 01:55 0
01:55 到 02:00 0
02:00 到 02:05 0
02:05 到 02:10 0
02:10 到 02:15 0
02:15 到 02:20 0
02:20 到 02:25 0
02:25 到 02:30 0
02:30 到 02:35 0
02:35 到 02:40 0
02:40 到 02:45 0
02:45 到 02:50 0
02:50 到 02:55 0
02:55 到 03:00 0
03:00 到 03:05 0
03:05 到 03:10 0
03:10 到 03:15 0
03:15 到 03:20 0
03:20 到 03:25 0
03:25 到 03:30 0
03:30 到 03:35 0
03:35 到 03:40 0
03:40 到 03:45 0
03:45 到 03:50 0
03:50 到 03:55 0
03:55 到 04:00 0
04:00 到 04:05 0
04:05 到 04:10 0
04:10 到 04:15 0
04:15 到 04:20 0
04:20 到 04:25 0
04:25 到 04:30 0
04:30 到 04:35 0
04:35 到 04:40 0
04:40 到 04:45 0
04:45 到 04:50 0
04:50 到 04:55 0
04:55 到 05:00 0
05:00 到 05:05 0
05:05 到 05:10 0
05:10 到 05:15 0
05:15 到 05:20 0
05:20 到 05:25 0
05:25 到 05:30 0
05:30 到 05:35 0
05:35 到 05:40 0
05:40 到 05:45 0
05:45 到 05:50 0
05:50 到 05:55 0
05:55 到 06:00 0
06:00 到 06:05 0
06:05 到 06:10 0
06:10 到 06:15 0
06:15 到 06:20 0
06:20 到 06:25 0
06:25 到 06:30 0
06:30 到 06:35 0
06:35 到 06:40 0
06:40 到 06:45 0
06:45 到 06:50 0
06:50 到 06:55 0
06:55 到 07:00 0
07:00 到 07:05 0
07:05 到 07:10 0
07:10 到 07:15 0
07:15 到 07:20 0
07:20 到 07:25 0
07:25 到 07:30 0
07:30 到 07:35 0
07:35 到 07:40 0
07:40 到 07:45 0
07:45 到 07:50 0
07:50 到 07:55 0
07:55 到 08:00 0
08:00 到 08:05 0
08:05 到 08:10 0
08:10 到 08:15 0
08:15 到 08:20 0
08:20 到 08:25 0
08:25 到 08:30 0
08:30 到 08:35 0
08:35 到 08:40 0
08:40 到 08:45 0
08:45 到 08:50 0
08:50 到 08:55 0
08:55 到 09:00 0
09:00 到 09:05 0
09:05 到 09:10 0
09:10 到 09:15 0
09:15 到 09:20 0
09:20 到 09:25 0
09:25 到 09:30 0
09:30 到 09:35 0
09:35 到 09:40 0
09:40 到 09:45 0
09:45 到 09:50 0
09:50 到 09:55 0
09:55 到 10:00 0
10:00 到 10:05 0
10:05 到 10:10 0
10:10 到 10:15 0
10:15 到 10:20 0
10:20 到 10:25 0
10:25 到 10:30 0
10:30 到 10:35 0
10:35 到 10:40 0
10:40 到 10:45 0
10:45 到 10:50 0
10:50 到 10:55 0
10:55 到 11:00 0
11:00 到 11:05 0
11:05 到 11:10 0
11:10 到 11:15 0
11:15 到 11:20 0
11:20 到 11:25 0
11:25 到 11:30 0
11:30 到 11:35 0
11:35 到 11:40 0
11:40 到 11:45 0
11:45 到 11:50 0
11:50 到 11:55 0
11:55 到 12:00 0
12:00 到 12:05 0
12:05 到 12:10 0
12:10 到 12:15 0
12:15 到 12:20 0
12:20 到 12:25 0
12:25 到 12:30 0
12:30 到 12:35 0
12:35 到 12:40 0
12:40 到 12:45 0
12:45 到 12:50 0
12:50 到 12:55 0
12:55 到 13:00 0
13:00 到 13:05 0
13:05 到 13:10 0
13:10 到 13:15 0
13:15 到 13:20 0
13:20 到 13:25 0
13:25 到 13:30 0
13:30 到 13:35 0
13:35 到 13:40 0
13:40 到 13:45 0
13:45 到 13:50 0
13:50 到 13:55 0
13:55 到 14:00 0
14:00 到 14:05 0
14:05 到 14:10 0
14:10 到 14:15 0
14:15 到 14:20 0
14:20 到 14:25 0
14:25 到 14:30 0
14:30 到 14:35 0
14:35 到 14:40 0
14:40 到 14:45 0
14:45 到 14:50 0
14:50 到 14:55 0
14:55 到 15:00 0
15:00 到 15:05 0
15:05 到 15:10 0
15:10 到 15:15 0
15:15 到 15:20 0
15:20 到 15:25 0
15:25 到 15:30 0
15:30 到 15:35 0
15:35 到 15:40 0
15:40 到 15:45 0
15:45 到 15:50 0
15:50 到 15:55 0
15:55 到 16:00 0
16:00 到 16:05 0
16:05 到 16:10 0
16:10 到 16:15 0
16:15 到 16:20 0
16:20 到 16:25 0
16:25 到 16:30 0
16:30 到 16:35 0
16:35 到 16:40 0
16:40 到 16:45 0
16:45 到 16:50 0
16:50 到 16:55 0
16:55 到 17:00 0
17:00 到 17:05 0
17:05 到 17:10 0
17:10 到 17:15 0
17:15 到 17:20 0
17:20 到 17:25 0
17:25 到 17:30 0
17:30 到 17:35 0
17:35 到 17:40 0
17:40 到 17:45 0
17:45 到 17:50 0
17:50 到 17:55 0
17:55 到 18:00 0
18:00 到 18:05 0
18:05 到 18:10 0
18:10 到 18:15 0
18:15 到 18:20 0
18:20 到 18:25 0
18:25 到 18:30 0
18:30 到 18:35 0
18:35 到 18:40 0
18:40 到 18:45 0
18:45 到 18:50 0
18:50 到 18:55 0
18:55 到 19:00 0
19:00 到 19:05 0
19:05 到 19:10 0
19:10 到 19:15 0
19:15 到 19:20 0
19:20 到 19:25 0
19:25 到 19:30 0
19:30 到 19:35 0
19:35 到 19:40 0
19:40 到 19:45 0
19:45 到 19:50 0
19:50 到 19:55 0
19:55 到 20:00 0
20:00 到 20:05 0
20:05 到 20:10 0
20:10 到 20:15 0
20:15 到 20:20 0
20:20 到 20:25 0
20:25 到 20:30 0
20:30 到 20:35 0
20:35 到 20:40 0
20:40 到 20:45 0
20:45 到 20:50 0
20:50 到 20:55 0
20:55 到 21:00 0
21:00 到 21:05 0
21:05 到 21:10 0
21:10 到 21:15 0
21:15 到 21:20 0
21:20 到 21:25 0
21:25 到 21:30 0
21:30 到 21:35 0
21:35 到 21:40 0
21:40 到 21:45 0
21:45 到 21:50 0
21:50 到 21:55 0
21:55 到 22:00 0
22:00 到 22:05 0
22:05 到 22:10 0
22:10 到 22:15 0
22:15 到 22:20 0
22:20 到 22:25 0
22:25 到 22:30 0
22:30 到 22:35 0
22:35 到 22:40 0
22:40 到 22:45 0
22:45 到 22:50 0
22:50 到 22:55 0
22:55 到 23:00 0
23:00 到 23:05 0
23:05 到 23:10 0
23:10 到 23:15 0
23:15 到 23:20 0
23:20 到 23:25 0
23:25 到 23:30 0
23:30 到 23:35 0
23:35 到 23:40 0
23:40 到 23:45 0
23:45 到 23:50 0
23:50 到 23:55 0
23:55 到 00:00 0
*/
叶子 2010-12-27
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--> 测试数据: @table
declare @table table (dtime datetime,id int)
insert into @table
select '2010-12-27 00:00:02',37017 union all
select '2010-12-27 00:01:00',37018 union all
select '2010-12-27 00:03:33',37019 union all
select '2010-12-27 00:04:05',37020 union all
select '2010-12-27 00:04:14',37021 union all
select '2010-12-27 00:06:11',37022 union all
select '2010-12-27 00:08:01',37023 union all
select '2010-12-27 00:08:11',37024 union all
select '2010-12-27 00:09:16',37025 union all
select '2010-12-27 00:10:12',37026 union all
select '2010-12-27 00:10:13',37027 union all
select '2010-12-27 00:12:55',37028 union all
select '2010-12-27 00:13:58',37029 union all
select '2010-12-27 00:16:13',37032

declare @table1 table(btime datetime)

declare @time datetime
set @time='2010-12-27 00:00:00'
while @time<=dateadd(d,1,'2010-12-27')
begin
insert into @table1 select @time
set @time=dateadd(n,5,@time)
end

select *,(select count(*) from @table
where dtime between a.btime and dateadd(n,5,a.btime)) as [count] from @table1 a
/*
btime count
----------------------- -----------
2010-12-27 00:00:00.000 5
2010-12-27 00:05:00.000 4
2010-12-27 00:10:00.000 4
2010-12-27 00:15:00.000 1
2010-12-27 00:20:00.000 0
2010-12-27 00:25:00.000 0
2010-12-27 00:30:00.000 0
2010-12-27 00:35:00.000 0
2010-12-27 00:40:00.000 0
2010-12-27 00:45:00.000 0
2010-12-27 00:50:00.000 0
2010-12-27 00:55:00.000 0
2010-12-27 01:00:00.000 0
2010-12-27 01:05:00.000 0
2010-12-27 01:10:00.000 0
2010-12-27 01:15:00.000 0
2010-12-27 01:20:00.000 0
2010-12-27 01:25:00.000 0
2010-12-27 01:30:00.000 0
2010-12-27 01:35:00.000 0
2010-12-27 01:40:00.000 0
2010-12-27 01:45:00.000 0
2010-12-27 01:50:00.000 0
2010-12-27 01:55:00.000 0
2010-12-27 02:00:00.000 0
2010-12-27 02:05:00.000 0
2010-12-27 02:10:00.000 0
2010-12-27 02:15:00.000 0
2010-12-27 02:20:00.000 0
2010-12-27 02:25:00.000 0
2010-12-27 02:30:00.000 0
2010-12-27 02:35:00.000 0
2010-12-27 02:40:00.000 0
2010-12-27 02:45:00.000 0
2010-12-27 02:50:00.000 0
2010-12-27 02:55:00.000 0
2010-12-27 03:00:00.000 0
2010-12-27 03:05:00.000 0
2010-12-27 03:10:00.000 0
2010-12-27 03:15:00.000 0
2010-12-27 03:20:00.000 0
2010-12-27 03:25:00.000 0
2010-12-27 03:30:00.000 0
2010-12-27 03:35:00.000 0
2010-12-27 03:40:00.000 0
2010-12-27 03:45:00.000 0
2010-12-27 03:50:00.000 0
2010-12-27 03:55:00.000 0
2010-12-27 04:00:00.000 0
2010-12-27 04:05:00.000 0
2010-12-27 04:10:00.000 0
2010-12-27 04:15:00.000 0
2010-12-27 04:20:00.000 0
2010-12-27 04:25:00.000 0
2010-12-27 04:30:00.000 0
2010-12-27 04:35:00.000 0
2010-12-27 04:40:00.000 0
2010-12-27 04:45:00.000 0
2010-12-27 04:50:00.000 0
2010-12-27 04:55:00.000 0
2010-12-27 05:00:00.000 0
2010-12-27 05:05:00.000 0
2010-12-27 05:10:00.000 0
2010-12-27 05:15:00.000 0
2010-12-27 05:20:00.000 0
2010-12-27 05:25:00.000 0
2010-12-27 05:30:00.000 0
2010-12-27 05:35:00.000 0
2010-12-27 05:40:00.000 0
2010-12-27 05:45:00.000 0
2010-12-27 05:50:00.000 0
2010-12-27 05:55:00.000 0
2010-12-27 06:00:00.000 0
2010-12-27 06:05:00.000 0
2010-12-27 06:10:00.000 0
2010-12-27 06:15:00.000 0
2010-12-27 06:20:00.000 0
2010-12-27 06:25:00.000 0
2010-12-27 06:30:00.000 0
2010-12-27 06:35:00.000 0
2010-12-27 06:40:00.000 0
2010-12-27 06:45:00.000 0
2010-12-27 06:50:00.000 0
2010-12-27 06:55:00.000 0
2010-12-27 07:00:00.000 0
2010-12-27 07:05:00.000 0
2010-12-27 07:10:00.000 0
2010-12-27 07:15:00.000 0
2010-12-27 07:20:00.000 0
2010-12-27 07:25:00.000 0
2010-12-27 07:30:00.000 0
2010-12-27 07:35:00.000 0
2010-12-27 07:40:00.000 0
2010-12-27 07:45:00.000 0
2010-12-27 07:50:00.000 0
2010-12-27 07:55:00.000 0
2010-12-27 08:00:00.000 0
2010-12-27 08:05:00.000 0
2010-12-27 08:10:00.000 0
2010-12-27 08:15:00.000 0
2010-12-27 08:20:00.000 0
2010-12-27 08:25:00.000 0
2010-12-27 08:30:00.000 0
2010-12-27 08:35:00.000 0
2010-12-27 08:40:00.000 0
2010-12-27 08:45:00.000 0
2010-12-27 08:50:00.000 0
2010-12-27 08:55:00.000 0
2010-12-27 09:00:00.000 0
2010-12-27 09:05:00.000 0
2010-12-27 09:10:00.000 0
2010-12-27 09:15:00.000 0
2010-12-27 09:20:00.000 0
2010-12-27 09:25:00.000 0
2010-12-27 09:30:00.000 0
2010-12-27 09:35:00.000 0
2010-12-27 09:40:00.000 0
2010-12-27 09:45:00.000 0
2010-12-27 09:50:00.000 0
2010-12-27 09:55:00.000 0
2010-12-27 10:00:00.000 0
2010-12-27 10:05:00.000 0
2010-12-27 10:10:00.000 0
2010-12-27 10:15:00.000 0
2010-12-27 10:20:00.000 0
2010-12-27 10:25:00.000 0
2010-12-27 10:30:00.000 0
2010-12-27 10:35:00.000 0
2010-12-27 10:40:00.000 0
2010-12-27 10:45:00.000 0
2010-12-27 10:50:00.000 0
2010-12-27 10:55:00.000 0
2010-12-27 11:00:00.000 0
2010-12-27 11:05:00.000 0
2010-12-27 11:10:00.000 0
2010-12-27 11:15:00.000 0
2010-12-27 11:20:00.000 0
2010-12-27 11:25:00.000 0
2010-12-27 11:30:00.000 0
2010-12-27 11:35:00.000 0
2010-12-27 11:40:00.000 0
2010-12-27 11:45:00.000 0
2010-12-27 11:50:00.000 0
2010-12-27 11:55:00.000 0
2010-12-27 12:00:00.000 0
2010-12-27 12:05:00.000 0
2010-12-27 12:10:00.000 0
2010-12-27 12:15:00.000 0
2010-12-27 12:20:00.000 0
2010-12-27 12:25:00.000 0
2010-12-27 12:30:00.000 0
2010-12-27 12:35:00.000 0
2010-12-27 12:40:00.000 0
2010-12-27 12:45:00.000 0
2010-12-27 12:50:00.000 0
2010-12-27 12:55:00.000 0
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2010-12-28 00:00:00.000 0
*/


小潜s 2010-12-27
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居然左边那个是“无列名”,OMG
本来还想问下是什么类型的列
fa_ge 2010-12-27
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连测试数据都懒得建

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