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qman
Constraint Violating Yak Guru
442 Posts |
 Posted - 2012-12-14 : 12:33:16
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| I would like to retreive records from a table for based on the maximum date for each type of record.Example table looks like thisjob complete_date notenull 2012-01-01 00:00:00.000 Test 1null 2012-02-05 00:00:00.000 Test 2null 2012-12-10 00:00:00.000 Test 3123 2012-10-11 00:00:00.000 Test 4123 2012-10-15 00:00:00.000 Test 5456 2012-12-17 00:00:00.000 Test 6My results should look like thisjob complete_date notenull 2012-12-10 00:00:00.000 Test 3123 2012-10-15 00:00:00.000 Test 5456 2012-12-17 00:00:00.000 Test 6You can see that I want to retreive only each job based on its max completed date. I was thinking of trying to use a max within a gouping, but having not luckHope this makes sense, any help would be much appreciated.Thanks! |
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sodeep
Master Smack Fu Yak Hacker
7174 Posts |
Posted - 2012-12-14 : 12:47:53
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| [code]Select * from(Select *,ROW_NUMBER() OVER (PARTITION BY ISNULL(Job,'N/A') Order by Completed_date desc)as Seq from Table)ZWhere Z.Seq = 1[/code] |
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qman
Constraint Violating Yak Guru
442 Posts |
Posted - 2012-12-14 : 13:57:59
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| Thanks for the help, this work great.I have never used OVER/PARTITION, need to now figure out how it is working, lol.... |
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visakh16
Very Important crosS Applying yaK Herder
52326 Posts |
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Using Max in a Grouping...