From: | GrGsM <shaik2(at)navionicsindia(dot)com> |
---|---|
To: | pgsql-general(at)postgresql(dot)org |
Subject: | SQL Query Help Please ! |
Date: | 2010-07-06 07:06:06 |
Message-ID: | 29082529.post@talk.nabble.com |
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Thread: | |
Lists: | pgsql-general |
Hi all
I am using the following query for data to be displayed in crosstab :
SELECT closedate,status,
SUM (CASE WHEN empcode = 'NT-028' THEN 1 ELSE 0 END) AS NT028,
SUM (CASE WHEN empcode = 'NT-031' THEN 1 ELSE 0 END) AS NT031,
SUM (CASE WHEN empcode = 'NT-050' THEN 1 ELSE 0 END) AS NT050,
SUM (CASE WHEN empcode = 'NT-062' THEN 1 ELSE 0 END) AS NT062
FROM dbcleaning
WHERE status = 'Fixed'
AND empcode IN
('NT-028',
'NT-031',
'NT-050',
'NT-062')
GROUP BY closedate, status
Now i need a column in the same result of the query which shows the
difference between the two columns .
For Example :
the result shoud be
Closedate , status , NT028, NT031, NT050,NT062 , NT028-NT031
Please note the last column in bold, i need the difference .
Any help will be highly appreciated
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