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Topic

AKP2008
Starting Member

45 Posts

Posted - 2009-01-05 : 04:24:58

hi,

I need to generate an incremental column.

My table structure is
VALIDFROM VALIDTO
2008-01-23 00:00:00.000 2008-02-22 00:00:00.000
2008-02-22 00:00:00.000 2008-03-23 00:00:00.000
2008-03-23 00:00:00.000 2008-04-23 00:00:00.000
2008-06-23 00:00:00.000 2008-08-13 00:00:00.000
2008-08-13 00:00:00.000 2008-08-24 00:00:00.000
2008-08-24 00:00:00.000 2008-09-15 00:00:00.000
2008-10-1 00:00:00.000 2008-12-20 00:00:00.000

I need an incremental column by comparing validfrom and validto of previous row.

My output should be like this.

VALIDFROM VALIDTO Column1
2008-01-23 00:00:00.000 2008-02-22 00:00:00.000 1
2008-02-22 00:00:00.000 2008-03-23 00:00:00.000 1
2008-03-23 00:00:00.000 2008-04-23 00:00:00.000 1
2008-06-23 00:00:00.000 2008-08-13 00:00:00.000 2
2008-08-13 00:00:00.000 2008-08-24 00:00:00.000 2
2008-08-24 00:00:00.000 2008-09-15 00:00:00.000 2
2008-10-1 00:00:00.000 2008-12-20 00:00:00.000 3

Please help me to get this.

Thanks.

SwePeso
Patron Saint of Lost Yaks

30421 Posts

Posted - 2009-01-05 : 05:16:48

Cross post http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=117168

E 12°55'05.63"
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