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Database Systems MCQs (Computer Science) From Textbook

Database Systems Competitive Exam MCQs – Mock Test 267

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Study Aggregate Functions Notes Questions and Answers PDF to support remote students. Download the Aggregate Functions Quiz Answers PDF e-Book, Ch. 15-267 to study Database Systems Practice Tests. Learn Introduction to SQL MCQ Questions PDF, Aggregate Functions Multiple Choice Questions (MCQ Quiz) for online database tutorials. Free Aggregate Functions Notes App Download: Database Systems Learning App to study functional dependency theory, additional basic operations, modification of database, aggregate functions test prep for DBMS skill building.

Download "Aggregate Functions Notes" App (Android & iOS): A Boolean data type that can take values true, false, and unknown, was introduced in; MCQ with answers: sql:1998, sql:1998, sql:2000, and sql:1999. Learn Introduction to SQL Questions and Answers, Apple Book to download free chapter to support remote students.

Aggregate Functions MCQs – Mock Test 267 PDF Download

MCQ 1331: A Boolean data type that can take values true, false, and unknown, was introduced in:

  1. SQL:1998
  2. SQL:1998
  3. SQL:1999
  4. SQL:2000

MCQ 1332: After the deletion operation, the relation:

  1. Still exists
  2. Doesn't exists
  3. Is empty
  4. Both A and B

MCQ 1333: SQL allows us to search for mismatches instead of matches by using the:

  1. Like operator
  2. AS operator
  3. NOT Like operator
  4. NOT AS operator

MCQ 1334: A simpler technique for reasoning about functional dependencies, is known as:

  1. Union
  2. Decomposition
  3. Pseudotransitivity
  4. Axioms

MCQ 1335: Specifying tuples within a given relation, are expressed in terms of the:

  1. Attributes
  2. Variables
  3. Function
  4. Domain

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