Re: how to get row number in select query
От | Piotr Czekalski |
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Тема | Re: how to get row number in select query |
Дата | |
Msg-id | 4D418D62.4010906@techbaza.pl обсуждение исходный текст |
Ответ на | Re: how to get row number in select query ("Oliveiros d'Azevedo Cristina" <oliveiros.cristina@marktest.pt>) |
Ответы |
Re: how to get row number in select query
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Список | pgsql-sql |
Gentelmen, I follow this thread and I don't exactly get an idea of yours, but isn't is as simple as (example: table "web.files" contains one column named "fileurl" ): select row_number() over(), X.fileurl from (select fileurl from web.files order by fileurl) X The only disadvantage is that if you do want to order resultset you have to use "select from select" as numbers are added before order which may cause some performance troubles. Regards, Piotr -- -------------------------------------------------------------- "TECHBAZA.PL" Sp. z o.o. Technologie WEB, eDB& eCommerce Oddział Gliwice ul. Chorzowska 50 44-100 Gliwice tel. (+4832) 7186081 fax. (+4832) 7003289
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