On 4/27/06, nngau <[EMAIL PROTECTED]> wrote: > > Can someone figure out what's going on. This is the only change > I made to this table. Basically I don't want any duplicate rows, so > I setup 4 fields to be my primary key. > > When I do a simple select query it takes nearly 30 seconds to complete. > This is affecting my websites and taking a very long time to query the > Products. Have I setup this table right? Thank You!! > > +---------+-------------+------+-----+---------+-------+ > | Field | Type | Null | Key | Default | Extra | > +---------+-------------+------+-----+---------+-------+ > | itemID | int(6) | | PRI | 0 | | > | classA | int(3) | | PRI | 0 | | > | classB | int(3) | | PRI | 0 | | > | classC | int(3) | | PRI | 0 | | > | picture | varchar(10) | YES | | NULL | | > | sex | char(2) | YES | | NULL | | > +---------+-------------+------+-----+---------+-------+ > > > -- > MySQL General Mailing List > For list archives: http://lists.mysql.com/mysql > To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] > >
You can avoid duplicate rows with only one primary key, unless you have a specific reason for having your primary key span on four columns. Your query being slower depends on how you have indexed your columns relating to your queries. Please give us a sample query which is running slowly.. Kishore Jalleda http://kjalleda.googlepages.com/projects
