Code for 1st day & the Last day of the Previous Month

[Ray via SQLMonster.com]

Hi there,

See if you can help me with the following:

I need to write an SQL code that will return me:

The 1st day & the Last day of the Previous Month in the following format
(smalldatetime) :

yyyy-mm-dd hh:mi:ss (24h)

Regards,
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Message posted via SQLMonster.com
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[Stu]

If you don't have a calendar table (which can be very helpful for
situations like this), you can do it on-the-fly using SQL Server like
so:
SELECT DATEADD(m, -1, FirstOfCurrentM onth) as FirstOfPrevious Month,
DATEADD(d, -1, FirstOfCurrentM onth) as LastOfPreviousM onth
FROM (SELECT CONVERT(smallda tetime,DATENAME (m, GetDate())
+ ' 1,' + DATENAME(yyyy, GETDATE())) as FirstOfCurrentM onth) a

Of course, you'll want to do the formatting on the client side.

HTH,
Stu

[Ross Presser]

On Wed, 20 Jul 2005 16:56:42 GMT, Ray via SQLMonster.com wrote:

Hi there,

See if you can help me with the following:

I need to write an SQL code that will return me:

The 1st day & the Last day of the Previous Month in the following format
(smalldatetime) :

yyyy-mm-dd hh:mi:ss (24h)

Regards,

declare @d1 smalldatetime
declare @d2 smalldatetime
declare @d3 smalldatetime

-- @d1 is the input date
set @d1 = CURRENT_TIMESTA MP
-- truncate hours, min, etc.
set @d1 = convert(smallda tetime, floor(convert(f loat, @d1)))

-- @d2 - last day of previous month

set @d2 = dateadd(day, - datepart(day, @d1), @d1)

-- @d3 - first day of previous month

set @d3 = dateadd(day, - datepart(day, @d2) + 1, @d2)

[Ray via SQLMonster.com]

Hi Stu,

Thank you very very much ..... it was a great help.

Best regards,

Stu wrote:

If you don't have a calendar table (which can be very helpful for
situations like this), you can do it on-the-fly using SQL Server like
so:

SELECT DATEADD(m, -1, FirstOfCurrentM onth) as FirstOfPrevious Month,
DATEADD(d, -1, FirstOfCurrentM onth) as LastOfPreviousM onth
FROM (SELECT CONVERT(smallda tetime,DATENAME (m, GetDate())
+ ' 1,' + DATENAME(yyyy, GETDATE())) as FirstOfCurrentM onth) a

Of course, you'll want to do the formatting on the client side.

HTH,
Stu

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[--CELKO--]

Build a calendar table with all the temporal information you need
instead of trying to compute it on the fly. Next, the display of
temporal data has nothing to do how it is stored.

[Ray via SQLMonster.com]

Ross,

Thank you so much ....

Ross Presser wrote:

Hi there,

[quoted text clipped - 8 lines]

Regards,

declare @d1 smalldatetime
declare @d2 smalldatetime
declare @d3 smalldatetime

-- @d1 is the input date
set @d1 = CURRENT_TIMESTA MP
-- truncate hours, min, etc.
set @d1 = convert(smallda tetime, floor(convert(f loat, @d1)))

-- @d2 - last day of previous month

set @d2 = dateadd(day, - datepart(day, @d1), @d1)

-- @d3 - first day of previous month

set @d3 = dateadd(day, - datepart(day, @d2) + 1, @d2)

--
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