Shailendra Soni <[EMAIL PROTECTED]> wrote on 02/09/2005 08:28:36 AM:
> Hi, > > I have a question regarding speed of the query. > In my application i am useing Mysql 4.0.20a-nt. > I have 10 tables and each table contains 4000000 records > and also 61 columns. I already created indexs on six column which are > important for me. > > i fired the query on tables through servlet(thread). > I fired same query on all tables on same time, but it has take time to > getting result . allmost > 7 to 10 minute . > > so please tell me > how can i imporve speed of the Mysql or query? > > so it will take less time ! > > Thanks > Shailendra > Have you tried looking at this for ideas, too? http://dev.mysql.com/doc/mysql/en/query-speed.html Most of us start with an EXPLAIN of the query and work from there (see suggested reading). Check your table structures and, if the frequency of this query justifies it, an appropriate multi-column index (not multiple single-column indexes). Shawn Green Database Administrator Unimin Corporation - Spruce Pine
