Database Systems MCQs - Chapter 15

Introduction to SQL Quiz Questions & Answers PDF Download - 3

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The Introduction to SQL Quiz Questions and Answers PDF (Introduction to SQL Quiz PDF e-Book) download Ch. 15-3 to study Database Systems Course. Practice Set Operations MCQs, Introduction to SQL MCQ questions and answers PDF for online computer science and engineering. The Introduction to SQL Quiz App Download: Database Systems Study App [Free] for sql data definition career test for top computer science schools.

The Quiz: The union operation automatically eliminates duplicates, unlike the; "Introduction to SQL" App (iOS, Android) with answers: from clause, select clause, define clause, and where clause for online computer science programs. Study DBMS for Competitive Exams Quiz Questions, download Amazon eBook (Free Sample) for online computer science and engineering.

Introduction to SQL Exam Questions and Answers PDF Download: Test 3

MCQ: 11

The union operation automatically eliminates duplicates, unlike the

Select clause
From clause
Define clause
Where clause

MCQ: 12

Duplicate tuples must be eliminated, when the query uses the clause

Select Clause
Where Distinct Clause
Select distinct Clause
From Distinct Clause

MCQ: 13

Any tuple in the relation must correspond to values of the primary key attributes of some tuple in relation s, is said to be

Unique key attribute
Primary key attribute
Candidate key attribute
Foreign key attribute

MCQ: 14

The SQL set operations include

Union
Intersect
Except
All of the Above

MCQ: 15

The predicated that succeeds if the value on which it is applied is not null, is known to be

Is Not Null
Is Null
Not Null
Null

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