MySQL Forums
Forum List  »  Newbie

Re: MAX and GROUP problem. Help!
Posted by: Felix Geerinckx
Date: May 20, 2005 07:06AM

359359 wrote:

> I've did this:
> SELECT test.*
> FROM test
> LEFT JOIN test AS s2 ON test.ELEMENT=s2.ELEMENT AND test.VALUE<s2.VALUE
> WHERE s2.ELEMENT IS NULL
>
> ...and it is working file but when I run on the bigger DB (50.000 rows) it take's me 35 min. Is
> there any fastes way?

Please post the result of the following command:

EXPLAIN SELECT (rest of your query) \G

(don't forget the \G instead of the usual ; - the formatting is these forums is sometimes horrible)

--
felix
Please use BBCode to format your messages in this forum.

Options: ReplyQuote


Subject
Written By
Posted
May 19, 2005 03:01AM
Re: MAX and GROUP problem. Help!
May 20, 2005 07:06AM


Sorry, you can't reply to this topic. It has been closed.

Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and does not necessarily represent the opinion of Oracle or any other party.