SQL Query multiple values of a column as multiple columns (SQL 2005)
When I run a SQL query on a single table and here is the data (this is just a sample, error column might be more than 10)
time total Error
00:16 6 10000(E)
00:20 4 10000(E)
00:46 2 10000(E)
01:01 2 100开发者_开发问答00(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)
I want to write a SQL query so that I want to get the above data like this
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
is this possible??
Does this meet your requirement?
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
If no, please tell me about the result so that I can bring the righteous corrections.
The SUM
function only comes to group the number of occurences of a same error into one given time
, which seems to be what you have in your table, actually. So, it shouldn't modify any data. On the other hand, if you had two different records of the same error by the same time, then they should be grouped by this time
and the total of occurences of this error will be additioned.
For your given in- and output it could be as simple as this.
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
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