Database Systems Practice Test 97

Data Storage and Querying Quiz Questions and Answers PDF - 97

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Data Storage and Querying Questions and Answers PDF Download: Quiz 97

MCQ 481: A component of query processor which executes low-level instructions generated by the DML compiler, is known as

A) DML interpreter

B) DDL compiler

C) DDL processor

D) Query evaluation engineer

MCQ 482: The deadlock prevention scheme that requires each transaction to locks all its data items before it begins

A) Initialization

B) Execution

C) Evaluation

D) Processing

MCQ 483: The number of error(s) in the following query is/are:
select count (*)
from course

A) 1

B) 2

C) 4

D) 6

MCQ 484: The iterator operation of a demand driven pipeline provides the function of

A) open()

B) next()

C) close()

D) All of the Above

MCQ 485: A system in which many users can access the database at the same time, is known as

A) Multi-end system

B) Multi-node system

C) Multi-user system

D) Multilevel system

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