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Deleting duplicate records 2+ messages / 2 participants [nested] [flat]
* Deleting duplicate records @ 1999-12-07 16:46 Paul S. Ganney <paul.ganney@dial.pipex.com> 0 siblings, 1 reply; 2+ messages in thread From: Paul S. Ganney @ 1999-12-07 16:46 UTC (permalink / raw) To: pgsql-interfaces This probably sounds horribly trivial, but still... I've managed to get some duplicate records in a table and am having problems getting rid of them (as there's nothing unique to SELECT on). Any ideas? And whilst I'm at it - any ideas on a scheme for preventing duplicates? Paul. -- ------------------------------------------- Expressed opinions are usually my own. Especially if they're any good (of course). ------------------------------------------- ^ permalink raw reply [nested|flat] 2+ messages in thread
* Re: [INTERFACES] Deleting duplicate records @ 1999-12-07 18:01 Tom Lane <tgl@sss.pgh.pa.us> parent: Paul S. Ganney <paul.ganney@dial.pipex.com> 0 siblings, 0 replies; 2+ messages in thread From: Tom Lane @ 1999-12-07 18:01 UTC (permalink / raw) To: Paul S. Ganney <paul.ganney@dial.pipex.com>; +Cc: pgsql-interfaces "Paul S. Ganney" <paul.ganney@dial.pipex.com> writes: > I've managed to get some duplicate records in a table and am having > problems getting rid of them (as there's nothing unique to SELECT on). > Any ideas? There's always the OID. Do select oid,* from table ... to see it, and get rid of the unwanted rows with delete from table where oid = nnnn; > And whilst I'm at it - any ideas on a scheme for preventing duplicates? Unique index on whatever combination of fields is your primary key? regards, tom lane ^ permalink raw reply [nested|flat] 2+ messages in thread
end of thread, other threads:[~1999-12-07 18:01 UTC | newest] Thread overview: 2+ messages (download: mbox mbox.gz follow: Atom feed) -- links below jump to the message on this page -- 1999-12-07 16:46 Deleting duplicate records Paul S. Ganney <paul.ganney@dial.pipex.com> 1999-12-07 18:01 ` Tom Lane <tgl@sss.pgh.pa.us>
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