SQL First and Last Day Of a Month

In This SQL Tutorial show you retrieve First Day and Last Day for a month using SQL Query.

It can dynamically to retrieve First Day and Last day for a month using SQL Query.

Example SQL Statement or Query below show you how to retrieve First Day or Last Day for a month. To display the date in different format, click here.
DECLARE @Today DATETIME
SELECT @Today = '6/17/2007'

Get First Day of a Month Using SQL Query
SELECT DATEADD(dd,-(DAY(DATEADD(mm,1,@Today))-1),DATEADD(mm,-3,@Today)) 
Value = 2007-03-01 00:00:00.000 

SELECT DATEADD(dd,-(DAY(DATEADD(mm,1,@Today))-1),DATEADD(mm,-2,@Today))Value = 2007-04-01 00:00:00.000
SELECT DATEADD(dd,-(DAY(DATEADD(mm,1,@Today))-1),DATEADD(mm,-1,@Today))Value = 2007-05-01 00:00:00.000

SELECT DATEADD(dd,-(DAY(DATEADD(mm,1,@Today))-1),DATEADD(mm,0,@Today))Value = 2007-06-01 00:00:00.000

SELECT DATEADD(dd,-(DAY(DATEADD(mm,1,@Today))-1),DATEADD(mm,1,@Today))Value = 2007-07-01 00:00:00.000

SELECT DATEADD(dd,-(DAY(DATEADD(mm,1,@Today))-1),DATEADD(mm,2,@Today))Value = 2007-08-01 00:00:00.000

SELECT DATEADD(dd,-(DAY(DATEADD(mm,1,@Today))-1),DATEADD(mm,3,@Today))Value = 2007-09-01 00:00:00.000


Get Last Day of a Month Using SQL Query
SELECT DATEADD(dd, -DAY(DATEADD(m,1,@Today)), DATEADD(m,-2,@Today))
Value = 2007-03-31 00:00:00.000

SELECT DATEADD(dd, -DAY(DATEADD(m,1,@Today)), DATEADD(m,-1,@Today))
Value = 2007-04-30 00:00:00.000

SELECT DATEADD(dd, -DAY(DATEADD(m,1,@Today)), DATEADD(m,0,@Today))
Value = 2007-05-31 00:00:00.000

SELECT DATEADD(dd, -DAY(DATEADD(m,1,@Today)), DATEADD(m,1,@Today))
Value = 2007-06-30 00:00:00.000

SELECT DATEADD(dd, -DAY(DATEADD(m,1,@Today)), DATEADD(m,2,@Today))
Value = 2007-07-31 00:00:00.000

SELECT DATEADD(dd, -DAY(DATEADD(m,1,@Today)), DATEADD(m,3,@Today))
Value = 2007-08-31 00:00:00.000

SELECT DATEADD(dd, -DAY(DATEADD(m,1,@Today)), DATEADD(m,4,@Today))
Value = 2007-09-30 00:00:00.000