Database Systems MCQs – Practice Test 49 (Chapter 15)

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Study Introduction to SQL Multiple Choice Questions (MCQs) with Answers PDF to strengthen programming logic. Download the Introduction to SQL MCQs PDF e-Book, Ch. 15-49 to study Database Systems Course. Practice Overview of SQL Query Language MCQs, Introduction to SQL Notes questions and answers PDF for DBMS digital assessments. Free Introduction to SQL MCQs App: Database Systems MCQ App Download to study nested subqueries, additional basic operations, set operations career test for data analytics preparation.

The "Introduction to SQL MCQs" App Download: SQL allows subqueries to occur wherever an expression returning a value; MCQ with answers: doesn't exists, exists, is permitted, and is not permitted. Solve JDBC and SQL Syntax Quiz Questions, download Google e-Book (Free Chapter) to strengthen programming logic.

Introduction to SQL MCQs – Practice Test 49 PDF Download

MCQ 241: Authorization over a database is included by:

SQL DDL
Authorization manager
Transaction control.
View control

MCQ 242: SQL allows subqueries to occur wherever an expression returning a value:

Exists
Doesn't exists
Is permitted
Is not permitted

MCQ 243: To include the special pattern characters, SQL allows the specification of an:

Escape character
Special character
Definitive character
Declarative character

MCQ 244: SQL treats the result of any comparison involving a null value, as a:

Null value
0
Unknown
True/False

MCQ 245: The type of a scalar subquery result is still a relation, even if it contains a:

Single instance
Single tuple
Single attribute
Single aggregate

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