Question

I have one table having

**user_id** | **date**
1           | 2012-10-18 09:34:4
3           | 2012-10-18 09:34:54
5           | 2012-10-17 09:14:54
6           | 2012-10-17 09:13:24
4           | 2012-10-16 08:34:54
9           | 2012-10-16 08:34:54

What I want is user_id with latest date-time i.e

**user_id** | **date**
3           | 2012-10-18 09:34:54
5           | 2012-10-17 09:14:54
4           | 2012-10-16 08:34:54

Answer 1

Try this:

select * from (
   select user_id, date
   from mytable
   order by date desc ) x
group by date(date);

Note: This is a mysql-only solution, but it works!