Using OVER() if customer has watch gladiator then 1 else 0 SQL SERVER

Question

I think I need some guidance as to what is wrong in my query. I am trying to do

Watched_Gladiator=CASE WHEN FilmName IN (CASE WHEN FilmName LIKE \'%Gladiator%\'         


        

Answer 1

The following does what you want for all films:

select r.*,
       (case when row_number() over (partition by filmname order by date) = 1
             then 1 else 0
        end) as IsWatchedFirstAndGladiator
from results r;

For just Gladiator:

select r.*,
       (case when filmname = 'Gladiator' and row_number() over (partition by filmname order by date) = 1
             then 1 else 0
        end) as IsWatchedFirst
from results r;