You are correct. Sorry my mistake. The SQL statement is correct and I find
the duplicate records.

ps: I just think postresql could make this easyly. Don't you think ? Any
function or anything else.

Thank you so much.

Ezequias

2007/2/2, Shoaib Mir <[EMAIL PROTECTED]>:

Where do you see the second table in it?

I guess here:

A = mytable
B = (select field1, field2, count(*) from mytable group by field1, field2
having count(*) > 1)

So that is all around one table that is 'mytable', where A and B are just
the aliases.

--
Shoaib Mir
EnterpriseDB (www.enterprisedb.com)

On 2/2/07, Ezequias Rodrigues da Rocha < [EMAIL PROTECTED]> wrote:
>
> Thank you but are you talking of two tables ? I intent to check in only
> one table.
>
> Please explain to me.
>
> Ezequias
>
> 2007/2/2, Bart Degryse < [EMAIL PROTECTED]>:
> >
> >  select *
> > from mytable A, (select field1, field2, count(*) from mytable group by
> > field1, field2 having count(*) > 1) B
> > where A.field1 = B.field1 and A.field2 = B.field2
> >
> > >>> "Ezequias Rodrigues da Rocha" < [EMAIL PROTECTED]>
> > 2007-02-02 14:48 >>>
> > Hi list,
> >
> > I am making some data minning and would like to know if someone tell
> > me how to retrieve the duplicate records based in one or two fields of my
> > table.
> >
> > Any help would be welcomed.
> >
> > --
> > =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
> >                                   Atenciosamente (Sincerely)
> >                         Ezequias Rodrigues da Rocha
> > =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> >
> > A pior das democracias ainda é melhor do que a melhor das ditaduras
> > The worst of democracies is still better than the better of
> > dictatorships
> > http://ezequiasrocha.blogspot.com/
> >
>
>
>
> --
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
>                                   Atenciosamente (Sincerely)
>                         Ezequias Rodrigues da Rocha
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> A pior das democracias ainda é melhor do que a melhor das ditaduras
> The worst of democracies is still better than the better of
> dictatorships
> http://ezequiasrocha.blogspot.com/





--
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
                                 Atenciosamente (Sincerely)
                       Ezequias Rodrigues da Rocha
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
A pior das democracias ainda é melhor do que a melhor das ditaduras
The worst of democracies is still better than the better of dictatorships
http://ezequiasrocha.blogspot.com/

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