How to find what foreign key references an index on table

Question

I have a non clustered index I would like to drop (it is a duplicate of the clustered index). However, it is being used by a foreign key constraint. I would like to be abl

Answer 1

Something like

Select
    f.name,
    object_name(f.parent_object_id)
From
    sys.foreign_keys f
        inner join
    sys.indexes i
        on f.referenced_object_id = i.object_id and
           f.key_index_id = i.index_id
Where
    i.name = 'idx_duplicate' and
    i.object_id = object_id('[dbo].[MyTable]')