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Message Posted: Fri, 05 Jan 2007 @ 16:12:43 GMT

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Subj:   Re: Counting a column multiple times based on CASE
From:   frank.p.oconnor


Your problem here is that the count function will count all non-null values. So when a case condition is not true, the 0 is returned and counted.

So, if you change the false condition to be a null, those rows are not counted.

Hope this helps,


     select id
     ,count(Case When frst_prch_days between 0 and 90
     Then trxn_id
     Else null
     end )As txns_1
     ,count(case when frst_prch_days between 91 and 365
     then trxn_id
     else null
     end) as txns_2
     ,count(case when frst_prch_days between 366 and 548
     then trxn_id
     else null
     end) as txns_3
     ,count(case when frst_prch_days ge 549
     then trxn_id
     else null
     end) as txns_4
     from temp3
     group by 1

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