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Chapter 15: Database Systems Exam Tests

Database Systems MCQs - Chapter 15

Introduction to SQL Multiple Choice Questions PDF Download - 5

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The Multiple Choice Question (MCQ Quiz): In result if we want to retain all duplicates, we must write; "Introduction to SQL" App Download (Free) with answers join operator, join all operator, union operator and union all operator to learn computer engineering courses. Solve set operations quiz questions, download Google eBook (Free Sample) for top computer science schools in the world.

Introduction to SQL Questions & Answers PDF Download: MCQ Quiz 5

MCQ 21: In result if we want to retain all duplicates, we must write

A) Join all operator
B) Join operator
C) Union operator
D) Union all operator

MCQ 22: For renaming attributes, the as clause can appear in

A) Select clause
B) Where clause
C) From clause
D) Both A and C

MCQ 23: A floating-point number, with precision can be initialized by type

A) float
B) real precision
C) double precision
D) numeric

MCQ 24: The SQL DDL includes the schema for each relation and

A) Type of attribute's values
B) Integrity Constraints
C) Set of indices
D) All of the Above

MCQ 25: SQL provides a way of renaming the attributes of a result relation, taking the form

A) old-name to new-name
B) old-name as new-name
C) ALTER old-name to new-name
D) ALTER old-name at new-name

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Introduction to SQL App (Android & iOS)

Introduction to SQL App (Android & iOS)

Database Management System App (Android & iOS)

Database Management System App (Android & iOS)

Computer Architecture App (Android & iOS)

Computer Architecture App (Android & iOS)

Digital Image Processing App (Android & iOS)

Digital Image Processing App (Android & iOS)