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Database Systems Practice Test 50

Generalization MCQ (Multiple Choice Questions) PDF - 50

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Generalization MCQ Questions PDF Download: Quiz 50

MCQ 246: In generalization, the constraint in which membership is evaluated on the basis of an explicit predicate, is known as

A) User-defined
B) System-defined
C) Condition-defined
D) Data-defined

MCQ 247: The indexing technique should be evaluated on the basis of factors of type

A) 3 types
B) 4 types
C) 5 types
D) 6 types

MCQ 248: The number of error(s) in the following query is/are:
select avg (salary)
from instructor;
where dept name=Comp. Sci.

A) 1
B) 2
C) 3
D) 4

MCQ 249: SQL also does not support actions

A) Input from users
B) Output to display
C) Communication over network
D) All of the Above

MCQ 250: The update statements should be executed as a

A) No transaction
B) Single transaction
C) Two transaction only
D) Multiple transactions

Database Systems Exam Prep Tests

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