On 21 Nov 2002, at 8:46, Juan C. P. Garrido wrote: > When I make the LEFT JOIN between the two tables, it takes a long time, > and it seems that the machine is crashed , because everything I try to make > in the machine is extremely slow, so I have to reset it manually.
Do you have indexes on the columns you're using for the join? Can you show the output of EXPLAIN on your query? -- Keith C. Ivey <[EMAIL PROTECTED]> Tobacco Documents Online http://tobaccodocuments.org Phone 202-667-6653 --------------------------------------------------------------------- Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
