I need to split a report by work week, and our work week is Saturday through Friday. How would I convert an ISO week from DATEPART(WW, ) into a work week?
                +4 
                A: 
                
                
              Use SET DATEFIRST to be saturday:
SET DATEFIRST 6;
Check the DATEPART documentation regarding the ISO week for how this affects things.
                  OMG Ponies
                   2009-11-19 22:07:58
                
              Yep this was the problem.  I removed datefirst because it made another function come out correct that was actually incorrectly written.  The other function came out wrong because while in development I forgot to set datefirst on it and instead corrected it with increments, but my DbConnection in my app WAS setting datefirst so it came out wrong.Basically I was a dummy, and the program is working in both functions instead of me swapping logic errors between them.
                  jjacksonRIAB
                   2009-11-19 23:34:51