当我在一个表上运行SQL查询时,这里是数据(这只是一个示例,错误列可能超过10个)
time total Error
00:16 6 10000(E)
00:20 4 10000(E)
00:46 2 10000(E)
01:01 2 10000(E)
01:40 2 10000(E)
02:07 2 10000(E)
02:52 1 10000(E)
04:27 2 10000(E)
04:29 6 10000(E)
04:32 4 10000(E)
04:49 2 10000(E)
04:50 2 10000(E)
06:18 2 10000(E)
09:04 1 10000(E)
10:57 4 10000(E)
10:58 4 10000(E)
00:36 1 9401(E)
00:37 1 9401(E)
00:57 1 9401(E)
00:58 1 9401(E)
01:32 1 9401(E)
01:33 1 9401(E)
02:36 2 9401(E)
03:05 1 9401(E)
03:06 1 9401(E)
09:53 2 9401(E)
12:11 2 9401(E)
12:12 4 9401(E)
12:41 1 9401(E)
我想写一个SQL查询,以便我想得到像这样的上述数据
time 10000(E) 9401(E)
---------------------------
00:16 6 0
00:20 4 0
00:36 0 1
00:37 0 1
00:46 2 0
00:57 0 1
00:58 0 1
01:01 2 0
01:32 0 1
01:33 0 1
01:40 2 0
02:07 2 0
02:36 0 2
02:52 1 0
03:05 0 1
03:06 0 1
04:27 2 0
04:29 6 0
04:32 4 0
04:49 2 0
04:50 2 0
06:18 2 0
09:04 1 0
09:53 0 1
10:57 4 0
10:58 4 0
12:11 0 2
12:12 0 4
12:41 0 1
这可能吗?
答案 0 :(得分:0)
这是否符合您的要求?
select e.time
, e.[10000(E)]
, e.[9401(E)]
from (
select time
, SUM(case when Error LIKE N'10000(E)' then Total else NULL end) as [10000(E)]
, null as [9401(E)]
from MyTable
where Error LIKE N'10000(E)'
group by time
union
select time
, null as [10000(E)]
, SUM(case when Error LIKE N'9401' then Total else NULL end) as [9401(E)]
from MyTable
where Error LIKE N'9401(E)'
group by time
) e
order by e.time
如果不是,请告诉我结果,以便我可以进行正确的更正。
SUM
函数只能将同一错误的出现次数分组到给定的time
,这实际上就是你在表中所拥有的。因此,它不应该修改任何数据。另一方面,如果同时有两个相同错误的不同记录,那么它们应按此time
分组,并且将添加此错误的总数。
答案 1 :(得分:0)
对于您给定的输入和输出,它可能就像这样简单。
SELECT *
FROM (
SELECT time
, [10000(E)] = Total
, [9401(E)] = 0
FROM YourTable
WHERE Error = '10000(E)'
UNION ALL
SELECT time
, [10000(E)] = 0
, [9401(E)] = Total
FROM YourTable
WHERE Error = '9401(E)'
) q
ORDER BY
time