Question

I have the following table:

ID  Date   FirstName  Dept
1   1/2/12 James      Act
1   2/5/12 Mike       IT
2   5/6/12 Joe        HR
2   7/6/12 Keith      IT

What I need to do that for each ID, I need to get the max date.
I need to show ID, Date, FirstName, Dept for the record for each ID that has the Max Date.
So in this case for ID of 1, I would show 1 2/5/12 Mike IT
How do I do this in SQL Server T-SQL?

I know I need to do group by.

The table name is TblAct

Answer 1

You will use the MAX() function with a GROUP BY

select t1.id, t1.date, t1.fname, t1.dept
from tblAct t1
inner join
(
  SELECT Max(Date) maxdate, ID
  from TblAct
  GROUP BY id
) t2
  on t1.id = t2.id
  and t1.date = t2.maxdate

See SQL Fiddle with Demo