Re: using limit with delete

[Chris Smith <chris@xxxxxxxxxxxxxx>]

I don't care about the order in my particular case, just that I have to 
clear the table.

I'll try the subquery and see how I go :)

Thanks!

Neil Conway wrote:
> Chris Smith wrote:
>
> > I'm trying to use a limit clause with delete, but it doesn't work at 
> > the moment
>
>
> It isn't in the SQL standard, and it would have undefined behavior: the 
> sort order of a result set without ORDER BY is unspecified, so you would 
> have no way to predict which rows DELETE would remove.
>
> > delete from table where x='1' limit 1000;
>
>
> You could use a subquery to achieve this:
>
> DELETE FROM table WHERE x IN
>     (SELECT x FROM table ... ORDER BY ... LIMIT ...);
>
> -Neil
>
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--
Regards,

Chris Smith

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