Comparing Values and Inserting a record

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Comparing Values and Inserting a record

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evanburen
Posting Yak Master

167 Posts

Posted - 2007-04-25 : 16:21:21

SELECT Industry,
100.0 * SUM(CASE when ceoischairman = 'yes' then 1 else 0 end) / COUNT(DISTINCT CompID) AS [YesPercent],
100.0 * SUM(CASE when ceoischairman = 'no' then 1 else 0 end) / COUNT(DISTINCT CompID) AS [NoPercent]
FROM TCompanies
GROUP BY Industry
ORDER BY Industry

This code above is working as I need it but I need to insert some additional functionality. Thanks

I need to add something like this:

IF YesPercent > NoPercent
UPDATE tableX SET CEOIsChairman='Yes' WHERE Industry='<the industry value being evaluated>'
Else If NoPercent > YesPercent
UPDATE tableX SET CEOIsChairman='No' WHERE Industry='<the industry value being evaluated>'
Else
UPDATE tableX SET CEOIsChairman='Equal' WHERE Industry='<the industry value being evaluated>'
End

dinakar
Master Smack Fu Yak Hacker

2507 Posts

Posted - 2007-04-25 : 16:38:30

Perhaps something along these lines:


update tableX set CEOIsChairman = CASE WHEN YesPercent > NoPercent THEN 'Yes'
					WHEN NoPercent > YesPercent THEN 'No'
					ELSE 'Equal'
					END

You can replace the YesPercent and NoPercent with the computation you already have.. Try running the statement as a SELECT instead of an UPDATE to make sure the right values are being updated and with what you intend to too.

************************
Life is short. Enjoy it.
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http://weblogs.sqlteam.com/dinakar/

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