Master In Computer Science

Database Systems Quizzes

CS: Database Systems MCQs - Complete

Basic Structure of SQL Queries Questions and Answers p. 348

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Learn Basic structure of sql queries mock test for exam, basic structure of sql queries MCQ with answers pdf test 348 for online job interview. Practice "Introduction to SQL Trivia Questions" and answers, basic structure of sql queries Multiple Choice Questions (MCQ) for online . Free basic structure of sql queries MCQs, transformation of relational expressions, dbms keys, aggregate functions, relational operations, basic structure of sql queries test prep for online computer engineering programs.

"The easiest way to understand the operations specified by the query is to consider the clauses in", basic structure of sql queries Multiple Choice Questions (MCQ) with choices procedural form, operational form, comparative form, and distinct form for master's degree in computer science. Learn introduction to sql questions and answers with free online certification courses for computer information science.

Trivia Quiz on Basic Structure of SQL Queries

1.

The easiest way to understand the operations specified by the query is to consider the clauses in

Operational form
Procedural form
Comparative form
Distinct form

2.

All the matching pairs of tuples are present in the

Cartesian Product result
Union result
Set difference result
Join result

3.

The aggregate functions, some and every, can be applied on a collection of

Null values
0s
1s
Boolean values

4.

A superkey is a set of one or more attributes that collectively, allow us to identify

Unique tuples
Repetitive tuples
Reflective tuple
Generated tuple

5.

The operations of theta-join are

Distributive
Conjunctive
Commutative
Associative

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