Resolved: Foreign Key referencing

Hi Agrim!
Thanks for reaching out.

Yes, a foreign key can reference a unique key in a database. This is because a unique key, like a primary key, ensures that all values in the column are unique, which is a necessary condition for a column to be referenced by a foreign key. The essential requirement for a foreign key is that the column it references must have unique values to maintain referential integrity.

Hope this helps.
Best,
Tsvetelin