BTW I am trying something like UPDATE "A" INNER JOIN "B" ON "A"."ACCOUNT_ID" = "B"."ACCOUNT_ID" SET "A"."CURRENT_BALANCE" = "A"."CURRENT_BALANCE"+ "B"."ACCOUNT_ID"; but it is not working ________________________________ From: plug-discuss-bounces@lists.plug.phoenix.az.us [mailto:plug-discuss-bounces@lists.plug.phoenix.az.us] On Behalf Of Bryan O'Neal Sent: Friday, May 23, 2008 6:42 PM To: Arizona State University Linux Users Group; Main PLUG discussion list Subject: SQL Help - update query with two tables I have not done SQL by hand since sometime in 2005/2006 and I can not remember how to do a dynamic update using more then one table. Let us say I have a table A and a table B and I want to update a record in table A for every record in table b base on information in table B. For example, let us say I want A.CURRENT_BALANCE to be set to A.CURRENT_BALANCE + B.DEPOSIT where A.ACCOUNT_ID = B.ACCOUNT_ID. Thoughts?