About SQL Server's record of how to remove duplicate values

This is one of the problems that you encounter in your daily work.

Dt_user_pay_record table
ID UserID Time Money
122014-3-2 2
222015-3-2 33
322011-9-5 5
452016-2-2 66
552015-4-4 77
Remove data
UserID Time Money
22015-3-2 33
52016-2-2 66
I want to take out the same UserID and time Max data.

Scenario 1:

SELECT * FROM (
Select ID, user_id, created, Pay_money,
Row_number () over (partition by user_id ORDER by created DESC) seq from dt_user_pay_record) tbl where seq =1

Scenario 2:

SELECT * FROM Dt_user_pay_record T1
Where NOT EXISTS (select 1 from Dt_user_pay_record T2
where t1.user_id=t2.user_id and t2.created>t1.created)

About SQL Server's record of how to remove duplicate values