Re: Referencing multiple primary keys from a single
От | Daniel Staal |
---|---|
Тема | Re: Referencing multiple primary keys from a single |
Дата | |
Msg-id | 27042678.1064251404@[192.168.1.52] обсуждение исходный текст |
Ответ на | Re: Referencing multiple primary keys from a single table. (Stephan Szabo <sszabo@megazone.bigpanda.com>) |
Список | pgsql-novice |
--On Monday, September 22, 2003 15:05 -0700 Stephan Szabo <sszabo@megazone.bigpanda.com> wrote: > This isn't multiple primary keys, it's a single primary key with > 3 columns. Ah, I wasn't sure how to refer to it. >> Then I have another table that needs to reference Table1 with a >> foreign key. What I really want to do is: >> Table2: >> field1 Primary key >> field2 references table1 > > What are you actually trying to do here? field2 is a single column > and you're referencing a 3 column key, so I'm not sure what behavior > you're looking for. Simple: I'm looking for a way to use one field in Table2 to refer to one row in Table1. (Instead of using 3.) I think you've actually answered my question though. The tone of the response made me realize I was thinking like my program which interchanges field1.T1:field2.T1:field3.T1 with other readings of the serial number... (In other words: I'm trying to do something which is a dumb idea in the first place. The best thing to do is not to do it.) Thanks for giving my brain the jolt it needed. Daniel T. Staal --------------------------------------------------------------- This email copyright the author. Unless otherwise noted, you are expressly allowed to retransmit, quote, or otherwise use the contents for non-commercial purposes. This copyright will expire 5 years after the author's death, or in 30 years, whichever is longer, unless such a period is in excess of local copyright law. ---------------------------------------------------------------
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