Hi all,
I'm trying to use a limit clause with delete, but it doesn't work at the
moment (are there plans to add this - I could try to do up a patch ?).
eg.
delete from table where x='1' limit 1000;
Is there another way to approach this?
I'm trying to delete records through a webapp and if there a
On Thu, Apr 07, 2005 at 11:51:10 +1000,
Chris Smith <[EMAIL PROTECTED]> wrote:
>
> Is there another way to approach this?
>
> I'm trying to delete records through a webapp and if there are 500,000
> records for example, I can't really leave the page open and expect it to
> finish...
Maybe yo
Hi Csaba,
Because I have a where clause limiting which records I'm deleting.
I'm deleting old info from a database, so I'm doing:
DELETE FROM sessions WHERE EXISTS (SELECT sessiontime FROM sessions
WHERE sessiontime < (timenow-7days) LIMIT 100)
(timenow-7days is evaluated in PHP and made an int).
Hi Chris,
Just a thought: if you have to clear the table anyway, wouldn't it work
for you to use truncate ? That should be faster than delete.
HTH,
Csaba.
On Thu, 2005-04-07 at 04:11, Chris Smith wrote:
> I don't care about the order in my particular case, just that I have to
> clear the table.
For the archives...
Using 7.4 so IN() is a little slower, so I rewrote it slightly to be
DELETE FROM table WHERE EXISTS (select x from table LIMIT ...);
Works very nicely :)
Thanks again.
Neil Conway wrote:
Chris Smith wrote:
I'm trying to use a limit clause with delete, but it doesn't work at
On Thu, Apr 07, 2005 at 12:02:24PM +1000, 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 uns
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 w
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 remov
Hi all,
I'm trying to use a limit clause with delete, but it doesn't work at the
moment (are there plans to add this - I could try to do up a patch ?).
eg.
delete from table where x='1' limit 1000;
(so truncate is out - I have a 'where' clause).
Is there another way to approach this?
I'm trying t
