Database Systems Practice Test 109

Relational Databases Quiz Questions and Answers PDF - 109

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Relational Databases Questions and Answers PDF Download: Quiz 109

MCQ 541: The DDL statement updates the

A) Data file

B) Data Record

C) Data dictionary

D) Data Flow

MCQ 542: If any of the foreign-key columns is null, the tuple is defined automatically to satisfy the

A) Integrity

B) Constraint

C) Atomicity

D) Isolation

MCQ 543: When we define a view, the database system stores the

A) Definition of view

B) Structure of view

C) Domain of view

D) Declaration of view

MCQ 544: The level of abstraction that describes how the data is actually stored, is known as

A) Virtual level

B) Logical level

C) View level

D) Physical level

MCQ 545: The SQL comparison <> all is identical to the operator

A) In

B) As

C) Not IN

D) Not As

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