Yes it does. I posted a correction but apparently it never made it Dixon
Sent via the Samsung GALAXY S®4, an AT&T 4G LTE smartphone <div>-------- Original message --------</div><div>From: "'Martijn Tonies (Upscene Productions)' m.ton...@upscene.com [firebird-support]" <firebird-support@yahoogroups.com> </div><div>Date:09/16/2014 12:16 PM (GMT-05:00) </div><div>To: firebird-support@yahoogroups.com </div><div>Subject: Re: [firebird-support] Re: SubQuery Help </div><div> </div>I think this needs a GROUP BY a.Project_PK With regards, Martijn Tonies Upscene Productions http://www.upscene.com Download Database Workbench for Oracle, MS SQL Server, Sybase SQL Anywhere, MySQL, InterBase, NexusDB and Firebird! From: mailto:firebird-support@yahoogroups.com Sent: Tuesday, September 16, 2014 6:12 PM To: firebird-support@yahoogroups.com Subject: [firebird-support] Re: SubQuery Help I'd recommend using a left join with table alias. Example Select a.Project_PK , SUM(b.cost) AS Sum_of_Cost , SUM(b.estimate_cost) AS Sum_of_Estimated_Cost , SUM(c.quantity) AS Sum_of_Quantity , SUM(c.estimate_quantity) AS Sum_of_Estimated_Quantity FROM Projects a LEFT JOIN Cost b ON a.project_pk = b.project_pk LEFT JOIN Quantity c ON a.project_pk = c.project_pk -- Dixon Epperson
