I am interested in selecting the rows in the table case_score_t with these conditions:
* I am searching for the rows with for that has a certain user_id.
* Because the same case_id can be in the table several times, i want to pick only one row pr. case_id
* But i am only interested in selecting the row with the greatest created_date, for that certain case_id.
So how will i be able to get the case_score rows, for a certain user_id, but only one row pr. case_id(which must be the row with the greatest created date).