I would create two separate indices on fields B and C

Olaf


On 6/16/09 4:25 AM, "Yariv Omer" <yar...@jungo.com> wrote:

> Hi
> 
> I have the following problem
> 
> I have a table with 3 fields ('Field_A', 'Field_B', 'Field_C')
> My query is:
> 
> Select Field_A from table where Field_b=10 order by Field_c ASC;
> 
> I have performance issues even when i have tried to define index for
> this table
> How should i define the corerct index (by the where or by the priority
> or both?)
> 
> Regards, Yariv
> 

----------------------------------------- Confidentiality Notice:
The following mail message, including any attachments, is for the
sole use of the intended recipient(s) and may contain confidential
and privileged information. The recipient is responsible to
maintain the confidentiality of this information and to use the
information only for authorized purposes. If you are not the
intended recipient (or authorized to receive information for the
intended recipient), you are hereby notified that any review, use,
disclosure, distribution, copying, printing, or action taken in
reliance on the contents of this e-mail is strictly prohibited. If
you have received this communication in error, please notify us
immediately by reply e-mail and destroy all copies of the original
message. Thank you.

-- 
MySQL General Mailing List
For list archives: http://lists.mysql.com/mysql
To unsubscribe:    http://lists.mysql.com/mysql?unsub=arch...@jab.org

Reply via email to