Q&A for developers and researchers interested in open data
SELECT DATEADD(MONTH, DATEDIFF(MONTH, 0, GETDATE()), 0) As First_Of_Current_Month , DateAdd(dd, -1, DateAdd(mm, DateDiff(mm, 0, GETDATE()) -1, 0)) As Last_Of_Current_Month , DATEADD(mm,DATEDIFF(mm,0,dateadd(month,-1,getdate())),0) As First_Of_Last_Month , dateadd(ms,-3,DATEADD(mm,DATEDIFF(mm,0,getdate()),0)) As Last_Of_Last_Month;