Database Systems Practice Test 436

Integrity Constraints Multiple Choice Questions (MCQs) PDF Download - 436

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The MCQ: SQL prohibits null values in the relation schema's constraint of; "Integrity Constraints" App (Free Android & iOS) with answers: foreign key, primary key, candidate key, and unique key to learn online certificate courses. Practice SQL Concepts and Queries Questions and Answers, Apple e-Book to download free sample for computer software engineer online degree.

Integrity Constraints MCQ Quiz with Answers PDF Download: Test 436

MCQ: 2176

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

Primary key
Foreign key
Unique key
Candidate key

MCQ: 2177

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

Entity Medium Model
Entity View Model
Entity Data Model
Entity Logic Model

MCQ: 2178

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

DML compiler
DML precompile
DML executor
DML pre-executor

MCQ: 2179

A transaction is said to have terminated if it has

Committed
Aborted
Partially committed
Both A and B

MCQ: 2180

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

Data-evaluation system
Data-insertion system
Data processing system
Data storage system

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