Database Systems Certification MCQs – Practice Test 3 (Chapter 14)
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Free "Introduction to RDBMS Quiz" App (Android & iOS) with MCQ: We are often interested in superkeys for which no proper subset is a; with answers: superkey, superset key, primary key, and unique key. Learn Modification of Database Quiz Questions, download Google Book (Free Chapter) for DBMS educational technology.
MCQ 11: We are often interested in superkeys for which no proper subset is a:
MCQ 12: Minimal superkeys are called:
MCQ 13: A table is a collection of relationships, there is a close correspondence between the concept of:
MCQ 14: The term that says values appearing in specified attributes of any tuple in the referencing relation also appear in specified attributes of at least one tuple in the referenced relation, is called:
MCQ 15: A relation, say r1, may include among its attributes the primary key of another relation, say r2. the r1 is also known as:
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