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SQL Concepts and Queries Notes e-Book PDF | Database Systems App Download

Database Systems Exam Prep: Practice Test 36 (Chapter 21)

SQL Concepts and Queries Notes Questions & Answers PDF Download - 36

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The SQL Concepts and Queries Notes Questions and Answers PDF (SQL Concepts and Queries Quiz Answers PDF e-Book) download Ch. 21-36 to learn Database Systems Course. Solve SQL Data Types and Schemas MCQs, SQL Concepts and Queries MCQs questions and answers PDF for computer science bachelor degrees. Free SQL Concepts and Queries Notes App Download: Database Systems Notes e-Book PDF to learn integrity constraints, database transactions career test for computer majors.

The Quiz: The top level of the hierarchy of contemporary database systems consists of; "SQL Concepts and Queries" App APK Download with answers: schemas, catalogs, views, and structures for computer science bachelor degrees. Practice Database Languages Quiz Questions, download Kobo eBook (Free Sample) for computer science bachelor degrees.

SQL Concepts and Queries Test Questions and Answers PDF Download: MCQ 36

MCQ: 176

The top level of the hierarchy of contemporary database systems consists of

  1. Catalogs
  2. Schemas
  3. Views
  4. Structures
MCQ: 177

Attributes of foreign keys are allowed to be null, provided that they have not been declared to be

  1. Not null
  2. Like Null
  3. As Null
  4. Candidate key
MCQ: 178

SQL also provides constructs that allow you to change the behavior with

  1. Null values
  2. Not Null values
  3. Unique values
  4. Not Unique values
MCQ: 179

The keyword work in the commit work and rollback work is

  1. Mandatory
  2. Constant
  3. Optional
  4. Variable
MCQ: 180

Arbitrary predicates may be costly to

  1. Execute
  2. Test
  3. Implement
  4. Control

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SQL Concepts and Queries Notes App (Android & iOS)

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