Re: Need help building SQL query
От | Bruno Wolff III |
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Тема | Re: Need help building SQL query |
Дата | |
Msg-id | 20051205164611.GB12513@wolff.to обсуждение исходный текст |
Ответ на | Need help building SQL query ("Robert Blixt" <robert.blixt@transpa.se>) |
Ответы |
Re: Need help building SQL query
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Список | pgsql-novice |
On Mon, Dec 05, 2005 at 10:28:04 +0100, Robert Blixt <robert.blixt@transpa.se> wrote: > > Timereportbreak consists of four breaks for > each timereport. They are ordered by the > indexnumber (0-3). They are connected to the > timereport table using the column timereportid. > > What I would like to retrieve is all columns from timereport > and the four timereportbreaks connected to the timereport table. > However, since each break is not a separate column I am not > sure how to solve this. And since this database already has data > in it. I can't remodel the table. This is the output I want: Normally you want to do this by joining to Timereportbreak once for each break (i.e. 4 times) using a different table alias for each join. Then you can use the a different condition on indexnumber for each alias to get the appropiate break.
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