Database Systems MCQs - Chapter 22

SQL Interview Questions and Answers Multiple Choice Questions PDF Download - 5

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SQL Interview Questions and Answers Questions & Answers PDF Download: MCQ Quiz 5

MCQ 21: Relational database products have special 'bulk loader' utilities to insert a

A) Set of tuples into a relation

B) Large set of tuples into a relation

C) Small set of tuples into a relation

D) Set of large tuples into a relation

MCQ 22: In the select evaluation of insertion, if the relation did not have a primary key constraint, the problem encountered would be of

A) Consistency

B) Integration

C) Syntax

D) Redundancy

MCQ 23: Scalar subqueries are useful in SQL update statements, where they can be used in the

A) Select clause

B) From clause

C) Where clause

D) Set clause

MCQ 24: The command for increase in annual salary are being made, and salaries of all instructors are to be increased by 5 percent, would be

A) update instructor
set salary=salary * 1.05;

B) update instructor
set salary=salary * .05;

C) update into instructor
set salary=salary * .05;

D) update to instructor
set salary=salary * 1.05;

MCQ 25: The simplest insert statement is a request to insert

A) One attribute

B) One tuple

C) One variable

D) One instance

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