Heh... sorry... just over a year late on this one...
Leap year calculations don't need to be complex in SQL Server...
ISDATE(STR(@Year,4)+'0229')
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row. First step towards the paradigm shift of writing Set Based code: ________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.
Change is inevitable... Change for the better is not.