Database Systems Practice Test 430

Structure of Relational Model MCQ (Multiple Choice Questions) PDF - 430

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Structure of Relational Model Questions and Answers PDF Download: Quiz 430

MCQ 2146: The order in which tuples appear in a relation of the relational model is

A) Relevant

B) Irrelevant

C) Dependent

D) Independent

MCQ 2147: Mapping in the Hibernate system, each Java class to one or more relations is specified in a

A) Workflow file

B) Mapping file

C) Business-logic file

D) View-access file

MCQ 2148: The lowest level of abstraction is known as

A) Logical level

B) View level

C) Physical level

D) Virtual level

MCQ 2149: Creation and dropping of catalogs is implementation dependent and not part of

A) Environment

B) Schema

C) SQL standards

D) User standards

MCQ 2150: The from clause by itself defines relations listed in the clause through a

A) Set difference

B) Cartesian product

C) Union

D) Join

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