Get occurrences of a record

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Views: 622 | Replies: 1

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Join Date: May 2008

Posts: 33

Reputation: 2eXtreme is an unknown quantity at this point

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2eXtreme

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Get occurrences of a record

May 28th, 2008

hey guys, i dont suppose you know how i can go from:

id.............result
----------------------
1..............Pass
1..............Pass
1..............Fail
1..............Pass
1..............Fail
2..............Pass
2..............Pass
2..............Fail

to this table:

id...........pass......fail
1............3.........2
2............2.........1

my current query is simply

select id, result from results

I just want to display the total number of occurrences of a result and display them under appropriate headings...I tried performing a union on 2 separate select statements, but it just stacks results on top of one another...

thanks for any help

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Join Date: Dec 2004

Location: London or Slovakia

Posts: 2,467

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peter_budo peter_budo is offline

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Re: Get occurrences of a record

May 29th, 2008

 Help with Code Tags 
 SQL Syntax (Toggle Plain Text) 
SELECT id, COUNT(NULLIF( result, 'Fail' )) Passes, COUNT(NULLIF( result, 'Pass' )) Fails
FROM results
GROUP BY id
ORDER BY id
SELECT id, COUNT(NULLIF( result, 'Fail' )) Passes, COUNT(NULLIF( result, 'Pass' )) Fails
FROM results
GROUP BY id
ORDER BY id

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