根据年份范围获取记录

Question

I want to select a result from student table- query - if I pass any year like 2013 then select the students join start date and end date or he is currently there in between these year like if any student start date year is 2010 and end date year is 2013 and I select 2011 year then show this student record also .

Table structure is-

StudentID   Age startDate   EndDate

1           14  5/05/2013   7/05/2013   
4           17  4/04/2012   8/10/2012

and I'm trying this-

select * from tblstudent 
Where  DATEPART(year, StartDate) BETWEEN @year-1 AND @year

Thanks in advance.

Answer 1

Not sure if I understood you, but this should do the job:

select *
from tblStudent s
where @year >= DATEPART(year, StartDate) and @year <= DATEPART(year, EndDate)

Answer 2

Actually , you almost there.

You just need to compare year part of your StartDate is smaller or equal to your @year and year part of your EndDate is bigger or equal to your @year .

Try like this;

select *
from tblStudent
where DATEPART(year, startDate) <= @year and DATEPART(year, EndDate) >= @year

For @year = 2013 , output will be;

| STUDENTID | AGE |                  STARTDATE |                     ENDDATE |
------------------------------------------------------------------------------
|         1 |  14 | May, 05 2013 03:00:00+0000 | July, 05 2013 03:00:00+0000 |

Here SQL Fiddle Demo .