Database Systems MCQs – Practice Test 2 (Chapter 10)
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The "Formal Relational Query Languages MCQ" App Download (iOS & Android): Set difference operation is ensured to be applied over compatible data, just like; MCQ with answers: projection, selection, dimensional, and union. Practice Database Languages Quiz Questions, download Apple Book (Free Chapter) to manage virtual classes.
MCQ 6: The projection that allows extension of operations, i.e. arithmetic and string functions to be used in the projection list, is known as:
MCQ 7: The set difference operation is ensured to be applied over compatible data, just like:
MCQ 8: Aggregate functions can operate over multiple occurrences of a value, known to be:
MCQ 9: The second extended relational-algebra operation is the:
MCQ 10: Attributes are listed that are desired to appear in the result list as a subscript to:
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