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abcd
Yak Posting Veteran
92 Posts |
 Posted - 2009-03-20 : 07:27:32
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| hi all...i have four columns userid,intime,intime1,outtime,outtime2 ..all of varchar type.....i want to calculate sum((intime2-intime)+(outime2-outtime)) in simple language....main problem is coming in doing any mathematical operation on varchar value...i cant change my table specifications...please throw some light on above issue.... |
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Nageswar9
Aged Yak Warrior
600 Posts |
Posted - 2009-03-20 : 07:32:50
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| Try this once,select replace(CAST(REPLACE(SUBSTRING(CONVERT(VARCHAR(12), intime, 114),1,5),':','.') AS DECIMAL(18,2)) - CAST(REPLACE(SUBSTRING(CONVERT(VARCHAR(12), intime1, 114),1,5),':','.') AS DECIMAL(18,2)),'.',':') from table |
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jimf
Master Smack Fu Yak Hacker
2875 Posts |
Posted - 2009-03-20 : 07:33:40
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| you can convert them to dates convert(datetime,intime2) and do mathematical operations and that with DATEDIFF and DATEADDJim |
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visakh16
Very Important crosS Applying yaK Herder
52326 Posts |
Posted - 2009-03-20 : 09:52:44
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| why are you using varchar for storing date values? will format be always consistent? |
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difference in two varchar values