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Database Systems Competitive Exam MCQs – Practice Test 53 (Chapter 15)

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The Introduction to SQL Multiple Choice Questions (MCQs) with Answers PDF (Introduction to SQL MCQs PDF e-Book) download Ch. 15-53 to study Database Systems Course. Practice Set Operations MCQs, Introduction to SQL Notes questions and answers PDF for online degrees. The Database Systems MCQs App Download: Free Introduction to SQL App to study sql data definition, basic structure of sql queries career test for online computer classes.

The MCQ: The SQL operations union, intersect, and except operate on; "Database Systems MCQs" App Download [Free] with answers: tuples only, attributes only, relations, and specific data set for online computer classes. Solve Aggregate Functions Quiz Questions, download Google e-Book (Free Chapter) for online computer engineering programs.

Introduction to SQL MCQs – Practice Test 53 PDF Download

MCQ: 261

The SQL operations union, intersect, and except operate on

  1. Attributes only
  2. Tuples only
  3. Relations
  4. Specific data set
MCQ: 262

The NOT NULL constraint excludes the null value from the

  1. Domain
  2. Attribute
  3. Definition
  4. Declaration
MCQ: 263

The basic structure of an SQL query consists of

  1. Clauses
  2. Commands
  3. Tuples
  4. Attributes
MCQ: 264

To remove a relation from an SQL database, we use the

  1. Delete command
  2. Eliminate
  3. Abort
  4. Drop
MCQ: 265

The clause that satisfy a specified predicate, is said to be

  1. From clause
  2. Where clause
  3. Select clause
  4. Define clause

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