What to replace left join in a view so i can have an indexed view?

Question

I have normalized tables in a database and to denormalize it, I created a view out of two tables. When I tried to create a clustered index on the view, it wouldn\'t let me,

Answer 1

There is a "workaround" here that involves check for NULL in the join and having a NULL representation value in the table

NULL value

INSERT INTO Father (Father_id, Father_name) values(-255,'No father')

The join

JOIN [dbo].[son] s on isnull(s.father_id, -255) = f.father_id