Database Management System MCQs – Practice Test 2 (Chapter 11)

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Relational Algebra & Calculus MCQ PDF Download – Practice Test 2

MCQ 6: In the EQUIJOIN condition, the operation which is used to avoid superfluous attribute is classified as:

ALPHA JOIN
NATURAL JOIN
UNNATURAL JOIN
THETA JOIN

MCQ 7: The Boolean expression used in the SELECT operation consists of clauses such as:

attribute name
constant value
comparison operators
all of above

MCQ 8: The types of binary operations includes:

union
intersection
set difference
all of above

MCQ 9: In the notation for query graphs, the double ovals or circles are used to represent:

non-declarative nodes
constant nodes
stable nodes
declarative nodes

MCQ 10: The operation which allows to process relationships from multiple relations rather than single relation is classified as:

division operation
relation operation
square operation
join operation

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