DBMS Keys MCQs Quiz Online PDF Download eBook
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"A property of the entire relation, rather than of the individual tuples, is known as" Multiple Choice Questions (MCQ) on dbms keys with choices attribute, constant, variable, and key for best online schools for computer science. Practice dbms keys quiz questions for merit scholarship test and certificate programs for online software development courses.
MCQs on DBMS Keys PDF Download eBook
MCQ: A property of the entire relation, rather than of the individual tuples, is known as
- Attribute
- Constant
- Variable
- Key
D
MCQ: The address field of a person should not be part of the primary key, since it is likely to
- Dependent
- Changed
- Not changed
- Too long
B
MCQ: The primary key should be chosen such that its attribute values are
- Updated
- Dependent
- Changed
- Never changed
D
MCQ: We are often interested in superkeys for which no proper subset is a
- Superset key
- Superkey
- Primary key
- Unique key
B
MCQ: Minimal superkeys are called
- Unique key
- Superset key
- Candidate key
- Primary key
C