Database Systems Practice Test 50

Generalization MCQ (Multiple Choice Questions) PDF - 50

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The MCQs: In generalization, the constraint in which membership is evaluated on the basis of an explicit predicate, is known as; "Generalization" App Download (iOS & Android) Free with answers system-defined, user-defined, condition-defined and data-defined to study online tutor courses. Practice database design and er model questions and answers, Google eBook to download free sample for best online schools for computer science.

Generalization Questions and Answers 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

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