Multiple choice

Which of the following entity constraints in DBMS requires that an entity belongs to no more than one lower level entity set?

  1. Overlapping

  2. Disjoint

  3. Key constraint

  4. Not null constraint

  5. Condition defined

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This type of entity constraint in DBMS requires that an entity belongs to no more than one lower level entity set.