Database Systems Certification MCQs – Practice Test 3 (Chapter 19)

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RDBMS Interview Questions and Answers Quiz – Practice Test 3 PDF Download

MCQ 11: The query languages are terse and formal, but they illustrate the fundamental techniques for:

Storing data to database
Extracting data from database
Updating data of database
Deleting data from database

MCQ 12: Operation that outputs pairs of rows from the two input relations that have the same value on all attributes that have the same name, is known as:

Natural join
Union operation
Selection
Projection

MCQ 13: A set of operations in a query language that take one or two relations as input and produce a new relation as their result, is known to be:

Relational calculus
Domain relational calculus
Relational algebra
Domain relational algebra

MCQ 14: A pictorial depiction of the schema of a database that shows the relations in the database, is known to be:

Schema structure
Schema definition
Schema domain
Schema diagram

MCQ 15: Relational operations can be applied to the results of queries as well as to the:

Given set of attributes
Given set of tuples
Given set of relations
Given set of domains

Database Systems Quiz App & e-Book – RDBMS Interview Questions and Answers Certification Guide

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