if it is static then it works fine.but we have lots of codes in a table which should be done similar operation.instead varifying staticly with c1,c2 can we make dynamic.
On 8/14/06, Peter Lauri <[EMAIL PROTECTED]> wrote:
SELECT SUM(IF(code='c1', code, IF(code='c2', code, 0))) - SUM(IF(code='c4', code, IF(code='c5', code, 0))) FROM datavalue; -----Original Message----- From: VenuGopal Papasani [mailto:[EMAIL PROTECTED] Sent: Monday, August 14, 2006 11:26 AM To: mysql@lists.mysql.com Subject: query needed Hi, i got a table datavalue as follows code period value c1 2005 1 c2 2005 2 c3 2006 3 c4 2005 2 c5 2005 1 now i need a query where some values should be added and some values should be subtracted of certain period.for ex here 2005 now i need (c1+c2-c4-c5) can i do it in a single query .Can any one give me the query plsssssssssss regards, venu. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
