December 7, 2009 at 3:42 am
Find all the employees who have joined at last day of month in last 3 years (2007,2008,2009)
December 7, 2009 at 3:51 am
Ankur Bhardwaj (12/7/2009)
Find all the employees who have joined at last day of month in last 3 years (2007,2008,2009)
Can you please supply some sample data in a readily-consumable format? The link below will show you how to do this.
Cheers
ChrisM
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Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden
December 7, 2009 at 4:26 am
Ankur Bhardwaj (12/7/2009)
Find all the employees who have joined at last day of month in last 3 years (2007,2008,2009)
Hi,
First you get the last date for all month like
create table #temp
(
slno int IDENTITY(1,1),
month_name varchar(12)null,
Begin_date datetime null,
Last_date datetime null
)
GO/*insert the values 1 to 100*/
WHILE 1 = 1
BEGIN
INSERT INTO #temp DEFAULT VALUES
IF @@IDENTITY = 100
BEGIN
BREAK
END
END
GO/*insert the Month name*/
UPDATE #temp
SET month_name = STUFF(CONVERT(CHAR(11),DATEADD(mm, slno-1, '01/01/2005'),100),4,3,'')
WHERE slno <= DATEDIFF(mm,'01/01/2005','12/31/2010')
GO/*insert the begin date for that month*/
update #temp
set Begin_date = CAST(('01 '+(CAST(month_name AS CHAR)))AS DATETIME)
GO/*insert the Last date for that month*/
update #temp
set Last_date = dateadd(mm, datediff(mm, 0, Begin_date) + 1, 0)-1
then try to use this temp table like
select * from MY_EMP_TABLE a
inner join #temp b
on a.join_date = b.Last_date
December 7, 2009 at 7:17 am
You need to be careful with Arun's solution as SQL Server stores date and time, so if you used a function like GetDate() to set the Join Date you would have a time portion you need to take that into account. I would more likely to do something like this:
DECLARE @last_day_of_month TABLE(date_start DATETIME, date_end DATETIME);
WITH cteNums AS
(
SELECT TOP 36
ROW_NUMBER() OVER(ORDER BY AC.NAME) AS N
FROM
sys.all_columns AS AC CROSS JOIN
sys.all_columns AS AC2
)
INSERT INTO @last_day_of_month (
date_start,
date_end
)
SELECT
DATEADD(month, N, '12/31/2006'),
DATEADD(DAY, 1, DATEADD(MONTH, N, '12/31/2006'))
FROM
cteNums
WHERE
DATEADD(month, N, '12/31/2006') <= '12/31/2009';
SELECT
*
FROM
@last_day_of_month AS LD JOIN
emp_table AS ET ON
ET.join_date >= LD.date_start AND
ET.join_date < LD.end_date
Jack Corbett
Consultant - Straight Path Solutions
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December 7, 2009 at 9:58 am
Even this should work, say the name of table is Employees and the name of the column is DateOfJoin.
SELECT *
FROM Employees
WHERE DATEPART( DAY, DATEADD( DAY, 1, DateOfJoin ) ) = 1
AND DATEDIFF( YEAR, DateOfJoin, GETDATE() ) IN (0,1,2)
How to post data/code on a forum to get the best help - Jeff Moden
http://www.sqlservercentral.com/articles/Best+Practices/61537/
December 7, 2009 at 12:24 pm
SELECT orderid, orderdate, custid, empid
FROM Sales.Orders
WHERE orderdate = DATEADD(month, DATEDIFF(month, '19991231', orderdate), '19991231');
--Here our orderdate field is year, month, day
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