Re: count(1) return 0?
От | Bill Moran |
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Тема | Re: count(1) return 0? |
Дата | |
Msg-id | 404289F3.7020102@potentialtech.com обсуждение исходный текст |
Ответ на | count(1) return 0? (Zak McGregor <zak@mighty.co.za>) |
Ответы |
Re: count(1) return 0?
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Список | pgsql-general |
Zak McGregor wrote: > Hi all > > is it possible to get a count(1) statemment, for example here: > > select count(1) from results where fixture=4916 and winner=away group by winner; > > to return a 0 value instead of absolutely nothing if no rows match fixture=4916 > and winner=away? I get absolutely no results at all. > > > select count(1) from results where fixture=4916 and winner=home group by winner; > count > ------- > (0 rows) > > any ideas please? Not really sure I understand what you want, but try something like this: select case when count(*) > 0 then ''t'' else ''f'' end from ... -- Bill Moran Potential Technologies http://www.potentialtech.com
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