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shoham
Starting Member
6 Posts |
 Posted - 2012-09-19 : 04:58:05
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| HelloI have an orders table with USER_ID and ORDER_DATEI want to achieve somthing like this:SELECT [USER_ID], [FIRST_ORDER_DATE], [SECOND_ORDER_DATE], [THIRD_ORDER_DATE], [FOURTH_ORDER_DATE]FROM ORDERS I have tried to create a scalar function (getFirstOrder, getSecondOrder, ...) but after the third its very slowany ideas?Thanks! |
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khtan
In (Som, Ni, Yak)
17689 Posts |
Posted - 2012-09-19 : 05:12:17
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[code]SELECT [USER_ID], [1] as [FIRST_ORDER_DATE], [2] as [SECOND_ORDER_DATE], [3] as [THIRD_ORDER_DATE], [4] as [FOURTH_ORDER_DATE]FROM ( SELECT [USER_ID], [ORDER_DATE], RN = row_number() over (partition by [USER_ID] order by [ORDER_DATE]) FROM ORDERS ) DPIVOT ( MAX(ORDER_DATE) FOR RN in ([1], [2], [3], [4]) ) P[/code]
KH[spoiler]Time is always against us[/spoiler] |
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shoham
Starting Member
6 Posts |
Posted - 2012-09-19 : 05:54:44
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| Thanks! thats great!! |
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visakh16
Very Important crosS Applying yaK Herder
52326 Posts |
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