Question

This is my first question on stackoverflow, welcome everybody.

I have a table:

id   fk_user
1      1
2      1
3      3
4      2
5      3

And I would like to prepare an SQL query witch returns fk_user sorted by the number of occurrences in that table. For instance:

fk_user 1 occurs 3 times, so it will be first.
fk_user 2 occurs once, so it will be last.
fk_user 3 occurs twice, so it will be the second.

Result of that query should be:

fk_user
1
3
2

Answer 1

select fk_user from 
xxx
group by fk_user
order by count(*) desc