Database Systems Practice Test 436

Integrity Constraints Multiple Choice Questions (MCQ) PDF - 436

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Integrity Constraints Questions and Answers PDF Download: Quiz 436

MCQ 2176: SQL prohibits null values in the relation schema's constraint of

A) Primary key

B) Foreign key

C) Unique key

D) Candidate key

MCQ 2177: A model that can be viewed as a variant of the entity-relationship model is called

A) Entity Medium Model

B) Entity View Model

C) Entity Data Model

D) Entity Logic Model

MCQ 2178: A special character prefaces DML calls, and a preprocessor, known as the

A) DML compiler

B) DML precompile

C) DML executor

D) DML pre-executor

MCQ 2179: A transaction is said to have terminated if it has

A) Committed

B) Aborted

C) Partially committed

D) Both A and B

MCQ 2180: To overcome the problems with conventional file processing system, we need

A) Data-evaluation system

B) Data-insertion system

C) Data processing system

D) Data storage system

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