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Database Systems Study Guide: Practice Test 49 (Chapter 15)

Introduction to SQL Multiple Choice Questions (MCQs) PDF Download - 49

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The Introduction to SQL Multiple Choice Questions (MCQs) with Answers PDF (Introduction to SQL MCQs PDF e-Book) download Ch. 15-49 to study Database Systems Course. Practice Overview of SQL Query Language MCQs, Introduction to SQL Notes questions and answers PDF for computer software engineer online degree. The Introduction to SQL MCQs App Download: Free Database Systems App to study nested subqueries, additional basic operations, set operations career test for online graduate programs.

The MCQ: Authorization over a database is included by; "Introduction to SQL" App Download [Free] with answers: authorization manager, sql ddl, transaction control., and view control for online graduate programs. Solve JDBC and SQL Syntax Quiz Questions, download Google eBook (Free Sample) to learn online certificate courses.

Introduction to SQL MCQs with Answers PDF Download: MCQ Quiz 49

MCQ: 241

Authorization over a database is included by

  1. SQL DDL
  2. Authorization manager
  3. Transaction control.
  4. View control
MCQ: 242

SQL allows subqueries to occur wherever an expression returning a value

  1. Exists
  2. Doesn't exists
  3. Is permitted
  4. Is not permitted
MCQ: 243

To include the special pattern characters, SQL allows the specification of an

  1. Escape character
  2. Special character
  3. Definitive character
  4. Declarative character
MCQ: 244

SQL treats the result of any comparison involving a null value, as a

  1. Null value
  2. 0
  3. Unknown
  4. True/False
MCQ: 245

The type of a scalar subquery result is still a relation, even if it contains a

  1. Single instance
  2. Single tuple
  3. Single attribute
  4. Single aggregate

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