Retrieving unique IDs with an associated Media ID

Question

I'm trying to find unique User Id's with and associated Media Id.

Here is what I have:

Select UserId, (Select Top(1) MediaId From Media Where UserId = M.UserId ORder By NewId()) as MediaId  From Media as M Group By UserId

I tried different group by combinations, but none of them worked.

Is there a better way to do this?

Edit

The table looks like this:

MediaId int PK
UserId  int FK
Status  nvarchar(50)

Expected results

   UserId  MediaId
     9    101
    10    234

Answer 1

I think you have to consider a two step process i.e. creation of a work table that would have the unique userid and a column for the mediaid. You can then use a loop to set the top mediaid for each user.