Get the last day of the month in SQL

Question

I need to get the last day of the month given as a date in SQL. If I have the first day of the month, I can do something like this:

DATEADD(DAY, DATEADD(MONT         


        

Answer 1

This works for me, using Microsoft SQL Server 2005:

DATEADD(d,-1,DATEADD(mm, DATEDIFF(m,0,'2009-05-01')+1,0))