How to Fetch Code from a Table by comparing two Columns(DataType:datetime) with respect to a given Date

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Hi !

I have a Table[FYear] of Financial Year.

Code	D1	D2
1011	4/1/2010	3/31/2011
1112	4/1/2011	3/31/2012
1213	4/1/2012	3/31/2013

I want to fetch Code with respect to a Date.Like Date:5/2/2011(2 May 2011).
Output should be : 1112

Please write/Correct the Query.

select Code from FYear_Year where D1>='5/2/2011' and D2<='5/2/2011'

It does not give correct output.

Posted 7-May-12 1:50am

LebneizTech

Updated 7-May-12 2:56am

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Maciej Los 7-May-12 15:33pm

See the answer (solution) no. 3. Probably i have found the solution. I'll be glad for rate my answer.

2 solutions

Solution 2

SQL

DECLARE @YourDate datetime
SET @YourDate = '5/2/2011'

SELECT
  FYear_Year.Code
FROM
  FYear_Year
WHERE
  (FYear_Year.D1 <= @YourDate) AND (FYear_Year.D2 >= @YourDate)

It is just a simple logic issue, you inverted your comparison operators in your query (no date can be before 1st April 2011 and, at the same time, after 31st March 2012).

Posted 7-May-12 3:42am

phil.o

Updated 7-May-12 3:44am

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Maciej Los · Accepted Answer · 2012-05-07T04:22:00

Your query seems to be OK, but if you use SQL Server, you need to check date format on ms sql server. If it differ from your local system date format, the result should be wrong. Probably, you need to SET DATEFORMAT[^]

Use simple trick:

SQL

SET DATEFORMAT mdy;
GO
DECLARE @datevar DATETIME
SET @datevar = '5/2/2011';
SELECT @datevar AS [Date], DATENAME(mm,@datevar) AS [DayName];
GO

and see the output ;)

I was waiting for accept for my answer, but it won't to come :( So, i've made decision to check why...
Finally i have found a solution, but i don't know the reasons of different behavior of MS SQL Server...

My SQL SERVER 2005 EE settings:
Language: ENGLISH (USA)
Collation: POLISH_CI_AS
Date format: ymd

Testing code:

SQL

IF NOT OBJECT_ID(N'#FYear') IS NULL DROP TABLE #FYear
CREATE TABLE #FYear (
			Code int NOT Null,
			D1 DateTime NULL,
			D2 DateTime NULL)
GO

SET DATEFORMAT mdy;
GO

INSERT INTO #FYear ([Code], [D1], [D2])
	VALUES(1011, '4/1/2010', '3/31/2011')
GO
INSERT INTO #FYear ([Code], [D1], [D2])
	VALUES(1112, '4/1/2011', '3/31/2012')
GO
INSERT INTO #FYear ([Code], [D1], [D2])
	VALUES(1213, '4/1/2012', '3/31/2013')
GO


DECLARE @dDate NVARCHAR(10)

SET @dDate='5/2/2011'

SELECT * FROM #FYear

SELECT CONVERT(DATETIME, @dDate, 101) AS [Date]

SELECT [Code] 
FROM #FYear 
WHERE ([D1] >=  CONVERT(DATETIME, @dDate , 101)) AND ([D2] <= CONVERT(DATETIME, @dDate , 101))

-- WORKING QUERY! 
SELECT [Code]
FROM #FYear 
WHERE CONVERT(INT, @dDate - [D1]) >=0 AND CONVERT(INT, @dDate - [D2])<=0
GO

DROP TABLE #FYear
GO

Sorry for my language...