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Explain Primary key, Strong entity set
written 9.5 years ago by gravatar for teamques10 teamques10 ★ 70k •   modified 9.5 years ago

Mumbai University > Information Technology > Sem 3 > Database Management System

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Year: May 2014
database management systems
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written 9.5 years ago by gravatar for teamques10 teamques10 ★ 70k

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 …

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