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Database Systems Exam Prep MCQs – Mock Test 436

Integrity Constraints MCQ with Answers PDF Download – Test 436

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Free "Integrity Constraints" App iOS & Android with MCQ: SQL prohibits null values in the relation schema's constraint of; with answers: foreign key, primary key, candidate key, and unique key for database programming studies. Practice SQL Concepts and Queries Questions and Answers, Google e-Book to download free chapter for DBMS online projects.

Integrity Constraints MCQ – Mock Test 436 PDF Download

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

  1. Primary key
  2. Foreign key
  3. Unique key
  4. Candidate key

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

  1. Entity Medium Model
  2. Entity View Model
  3. Entity Data Model
  4. Entity Logic Model

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

  1. DML compiler
  2. DML precompile
  3. DML executor
  4. DML pre-executor

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

  1. Committed
  2. Aborted
  3. Partially committed
  4. Both A and B

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

  1. Data-evaluation system
  2. Data-insertion system
  3. Data processing system
  4. Data storage system

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