Explain Primary key, Strong entity set

4views

written 9.0 years ago by

meghalikalyankar • 2.3k

Strong entity set

If an entity type has a key attribute specified then it is a strong entity type. For example, at a university or college we have student entities and we would define a student entity type. Universities and Colleges assign unique student numbers, one per student. Student has …

Create a free account to keep reading this post.

and 5 others joined a min ago.

ADD COMMENT EDIT