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Database Systems MCQs App Download | Introduction to SQL PDF e-Book

Database Systems MCQs: Chapter 15

Introduction to SQL Multiple Choice Questions (MCQs) PDF Download | 37

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The Introduction to SQL Multiple Choice Questions (MCQs) with Answers PDF (Introduction to SQL MCQs PDF e-Book) download Ch. 15-37 to study Database Systems Course. Practice Nested Subqueries MCQs, Introduction to SQL trivia questions and answers PDF for free online classes. The Introduction to SQL MCQs App Download: Free Database Systems App to study sql data definition, set operations, modification of database career test for online software engineering certification.

The MCQ: We can write 'relation A contains relation B' as "Introduction to SQL" App Download [Free] with answers: exists (a except b), exists (b except a), notexists (a except b), and notexists (b except a) for online software engineering certification. Solve Basic Structure of SQL Queries Quiz Questions, download Google e-Book (Free Sample) for best online schools for computer science.

Introduction to SQL MCQs with Answers PDF Download: MCQ Quiz 37

MCQ: 181

We can write 'relation A contains relation B' as

  1. exists (B except A)
  2. exists (A except B)
  3. notexists (A except B)
  4. notexists (B except A)
MCQ: 182

Create table department (dept name varchar (20), building varchar (15), budget numeric (12,2), primary key (dept name)); the commands shows

  1. Retrieval of relation
  2. Executing the relation
  3. Creating a relation
  4. Inserting in a relation
MCQ: 183

The result of Boolean expression 'false or unknown' is

  1. Null
  2. Unknown
  3. True
  4. False
MCQ: 184

SQL includes a Boolean function for testing whether a subquery has

  1. Unique tuples
  2. Duplicate tuples
  3. Tuples
  4. Empty tuples
MCQ: 185

The command for deleting the instructor relation having salary range $13,000 and $15,000

  1. delete about instructor
    where salary between 13000 and 15000;
  2. delete from instructor
    where salary between 13000 and 15000;
  3. delete from instructor
    where salary Like 13000 and 15000;
  4. delete about instructor where salary Like 13000 and 15000;

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