We can assign a primary key as a foreign key to other tables but we can�

Is primary key = unique key,not null?
If yes,please explain
IF No,please explain

Question Posted / dr umer saleem

Answer Posted / dr umer saleem

We can assign a primary key as a foreign key to other tables
but we can't assign Unique Not Null as a foreign key.

Is This Answer Correct ?

2 Yes

9 No

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