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Sql Server

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in Sql server 
-------------------------
name | [1 AUG]| [2AUG]| [3AUG]
__________________________
prad | Present| Present| Lop
vas  | Present| Present| Lop

I want to count the number of 'Present' each person's Present Dates in a Month as I mention Above .please help How can I count row wise?

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asked Sep 01, 2012 at 01:33 PM in Default

Parthasarathy gravatar image

Parthasarathy
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1 answer: sort voted first

(Off the top of my head...)

You could do something like:

SELECT CASE WHEN [1 aug] = 'Present' THEN 1 ELSE 0 END +
       CASE WHEN [2 aug] = 'Present' THEN 1 ELSE 0 END +
       ... 
       CASE WHEN [31 aug] = 'Present' THEN 1 ELSE 0 END AS DaysPresentInAugust

An alternative would be to use the UNPIVOT statement

SELECT Name, DayOfAugust, PresentOrNot
FROM (SELECT Name, [1 Aug], [2 Aug], ..., [31 Aug] FROM <your table>) p
UNPIVOT
     (PresentOrNot FOR DayOfAugust IN ([1 Aug], [2 Aug], ..., [31 Aug])) AS unp

Something like that.

Note: all code untested. Suggestions only. I'm not on a machine with SQL Server to test this stuff...

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answered Sep 01, 2012 at 02:16 PM

ThomasRushton gravatar image

ThomasRushton ♦
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asked: Sep 01, 2012 at 01:33 PM

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Last Updated: Sep 01, 2012 at 02:17 PM