Re: deleting an identical record

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От Oliver Elphick
Тема Re: deleting an identical record
Дата
Msg-id 1014279902.13240.117.camel@linda
обсуждение исходный текст
Ответ на Re: deleting an identical record  (missive@frontiernet.net (Lee Harr))
Список pgsql-general
On Thu, 2002-02-21 at 03:44, Lee Harr wrote:
> > In a table I entered by accident two times the same record, if I now
> > list the table I see two lines with exactly the same contents. How can
> > I delete one of those two records? I can't find a select criterium which
> > differs for both.
> >
>
>
> create table t (a int, b text);
>
> insert into t values (1, 'a');
> insert into t values (1, 'a');
> insert into t values (1, 'a');
> insert into t values (1, 'a');
>
> select oid, * from t;

Aren't the oids different?

DELETE FROM t WHERE oid <> xxx

--
Oliver Elphick                                Oliver.Elphick@lfix.co.uk
Isle of Wight                              http://www.lfix.co.uk/oliver
GPG: 1024D/3E1D0C1C: CA12 09E0 E8D5 8870 5839  932A 614D 4C34 3E1D 0C1C

     "My sheep hear my voice, and I know them, and they
      follow me; And I give unto them eternal life; and they
      shall never perish, neither shall any man pluck them
      out of my hand."          John 10:27,28


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