Re: where not exists

Dear Josh,
The reason why I do things is two steps is that this allows me archive the
deleted items.
Llew

""Josh Berkus"" <josh@agliodbs.com> wrote in message
news:web-819049@davinci.ethosmedia.com...
> Llew,
>
> Do it all in one query:
>
> > DELETE FROM a
> >         WHERE NOT EXISTS
> >         (
> >             SELECT b.join1
> >                 FROM b
> >                 WHERE
> >                 a.join1 = b.join1 AND
> >                 a.join2 = b.join2
> >         )
>
> And make sure that join1 and join2 are indexed in both tables.
>
> -Josh Berkus
>
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