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

Database Systems MCQs: Chapter 15

Introduction to SQL Quiz Questions & Answers PDF Download | 39

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The Introduction to SQL Quiz Questions and Answers PDF (Introduction to SQL Quiz PDF e-Book) download Ch. 15-39 to study Database Systems Course. Practice SQL Data Definition MCQs, Introduction to SQL MCQ questions and answers PDF for BSc computer science. The Introduction to SQL Quiz App Download: Free Database Systems App to study aggregate functions, set operations, basic structure of sql queries, overview of sql query language career test for online computer science schools.

The Quiz: We can drop attributes from a relation by the command "Introduction to SQL" App (iOS, Android) with answers: alter table r delete a;, alter table r drop a;, modify table r delete a; alter table r drop a;, and alter table r drop a for online software engineering degrees. Study ER Diagrams Symbols Quiz Questions, download Amazon e-Book (Free Sample) for BSc computer science.

Introduction to SQL Exam Questions and Answers PDF Download: Test 39

MCQ: 191

We can drop attributes from a relation by the command

  1. alter table r drop A;
  2. alter table r delete A;
  3. modify table r delete A; alter table r drop A;
  4. alter table r drop A;
MCQ: 192

The effect of null values on some of the more complicated SQL constructs can be

  1. Subtle
  2. Easy
  3. Ideal approach
  4. None of the above
MCQ: 193

The output to the comparison '1 < null', would be

  1. True
  2. False
  3. Null
  4. Unknown
MCQ: 194

The where clause is a predicate involving attributes of the relation in the

  1. From clause
  2. Select clause
  3. Define clause
  4. IN clause
MCQ: 195

SQL was developed by

  1. IBM
  2. Oracle
  3. Microsoft
  4. Apple

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Introduction to SQL Apps (Android & iOS)

Introduction to SQL App

DataBase Management System (MCS) Apps (Android & iOS)

DataBase Management System (MCS) App

Mechanics of Materials Apps (Android & iOS)

Mechanics of Materials App

Computational Fluid Dynamics Apps (Android & iOS)

Computational Fluid Dynamics App