Re: (un)grouping question
От | Jeff Davis |
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Тема | Re: (un)grouping question |
Дата | |
Msg-id | 1200941940.10057.503.camel@dogma.ljc.laika.com обсуждение исходный текст |
Ответ на | (un)grouping question ("Rhys Stewart" <rhys.stewart@gmail.com>) |
Ответы |
Re: (un)grouping question
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Список | pgsql-general |
On Mon, 2008-01-21 at 12:36 -0500, Rhys Stewart wrote: > Hi list, > > have the following table > > uid|somevalue > -------------------- > 1|11 > 2|44 > 3|31 > 4|44 > 5|71 > 6|33 > 7|33 > 8|44 > 9|14 > > would like to remove the duplicate values in the column somevalue. > doing this by just adding a random number is perfectly fine, however > i want to retain at least one of the original values of somevalue. Any > ideas how to do this in in a query? Would something like this help? SELECT MIN(uid), somevalue FROM mytable GROUP BY somevalue; Also consider just doing: SELECT DISTINCT somevalue FROM mytable; ...if you don't need uid in the result set. Regards, Jeff Davis
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