SELECT sum(hours) FROM table WHERE emp_name = 'JSMITH' AND work_date = '8-15-2005'::date will give you the hours. So...
INSERT INTO table SELECT blah WHERE (SELECT sum(hours) FROM table WHERE emp_name = 'JSMITH' AND work_date = '8-15-2005'::date) != 8 Should do what you want. On Wed, Aug 31, 2005 at 12:49:14PM -0400, Henry Ortega wrote: > Ok. Here's TABLE A > > emp date hours type > JSMITH 08-15-2005 5 WORK > JSMITH 08-15-2005 3 WORK > JSMITH 08-25-2005 6 WORK > > I want to insert the ff: > 1.) JSMITH 08-15-2005 8 VAC > 2.) DOE 08-16-2005 8 VAC > > #1 should fail because there is already 8 hours entered as being > Worked on 08-15-2005 (same date). > > Any suggestions? > > > > On 8/31/05, Ragnar Hafsta? <[EMAIL PROTECTED]> wrote: > > > > On Wed, 2005-08-31 at 11:49 -0400, Henry Ortega wrote: > > > What I am trying to do is > > > * Insert a record for EMPLOYEE A to TABLE A > > > IF > > > the sum of the hours worked by EMPLOYEE A on TABLE A > > > is not equal to N > > > > > > Is this possible? > > > > Sure, given a suitable schema > > > > It is not clear to me, if the hours worked are > > to be found in the same table you want to insert > > into, or not. > > > > gnari > > > > > > > > -- Jim C. Nasby, Sr. Engineering Consultant [EMAIL PROTECTED] Pervasive Software http://pervasive.com 512-569-9461 ---------------------------(end of broadcast)--------------------------- TIP 1: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly