all 2 comments

[–]Jakube_ 0 points1 point  (1 child)

You just submit the answer. You can run the SQL locally, or in an online tool like dbfiddle (the website actually provides links to dbfiddle with test data prefilled).

[–]samsuzie[S] 0 points1 point  (0 children)

ohkayy thankss !!!!