MySQL Forums
Forum List  »  Newbie

Re: How to do Update query using sum from another table
Posted by: Rick James
Date: October 12, 2009 12:30AM

UPDATE mam_accounts a
   JOIN
       ( SELECT PortIDNum,
                SUM(m.NetFlows) as NetFlows
            FROM cp_m
            WHERE EndDate BETWEEN ... AND ...
            GROUP BY PortIDNum
       ) m  ON m.PortIDNum = a.PortIDNum
   SET a.Last12MoNetFlows = m.NetFlows,
       a.Last12MoDateStart = ...,
       a.Last12MoDateEnd = ...

http://dev.mysql.com/doc/refman/5.0/en/update.html

Options: ReplyQuote


Subject
Written By
Posted
Re: How to do Update query using sum from another table
October 12, 2009 12:30AM


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.