Database Systems Practice Test 30

Relational Query Languages MCQ (Multiple Choice Questions) PDF - 30

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The MCQs: Query language is a language in which a user; "Relational Query Languages" App Download (iOS & Android) Free with answers response, requests, stores and represents to study SQL certification courses. Practice introduction to rdbms questions and answers, Google eBook to download free sample for online college courses.

Relational Query Languages Questions and Answers PDF Download: Quiz 30

MCQ 146: The query language is a language in which a user

A) Requests

B) Response

C) Stores

D) Represents

MCQ 147: The predicate of a selection statement may include comparisons between

A) Two attributes

B) Multiple attributes

C) Two relations

D) Multiple relations

MCQ 148: The designer maps the high-level conceptual schema onto the implementation data model, at the level

A) Contextual-design phase

B) Physical-design phase

C) Logical-design phase

D) Virtual-design phase

MCQ 149: In a database design, gathering the data needs of the prospective database users, comes at the stage?

A) First stage

B) Second stage

C) Third stage

D) Fourth stage

MCQ 150: Model that uses a collection of tables to represent data and the relationships among the data, is known as

A) Relational model

B) View model

C) Logical model

D) Physical model

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