Oracle select on single table

Question

I Have the following table.

id  NAME    folder_NAME
1   tom     popular
2   tom     folder2
3   peter   popular
4   peter   folder1
5   john    folder1
6   john    folder2
7   john    folder3
8   Mark    folder1
9   Mark    folder2
10  Alex    folder1

How do I select the names that do not have a folder name 'popular' ?

Answer 1

Try this:

select distinct NAME 
  from table
 where name not in (select name from table where folder_name = 'popular')

but this is not the best query, which could be written. I would prefer here NOT EXISTS clause.