SQL Server - does trigger affects @@Rowcount?

Question

I have a query which do UPSERT or update if exists and insert if not:

update MyTable 
set [Name]=@NewValue 
where ID=@ID

If @@RowCount = 0 
insert into MyTa         


        

Answer 1

@@ROWCOUNT is tied to the scope of your current execution and is therefore unaffected by a trigger, which would run in a different scope.