Welcome to the Query Optimization MCQs Page

Dive deep into the fascinating world of Query Optimization with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Query Optimization, a crucial aspect of MySQL Database. In this section, you will encounter a diverse range of MCQs that cover various aspects of Query Optimization, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within MySQL Database.

Check out the MCQs below to embark on an enriching journey through Query Optimization. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of MySQL Database.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Query Optimization. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Query Optimization MCQs | Page 9 of 9

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MySQL Clauses

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Miscellaneous Topics in MySQL

Q81.

Which clause is used to “Identifies table from which to draw table and how the table should be joined”?

FROM

SELECT

ORDER By

WHERE

Discuss

Answer: (a).FROM

Q82.

Which clause is used to “Filters out unwanted data”?

FROM

WHERE

SELECT

ORDER BY

Discuss

Answer: (b).WHERE

Q83.

Which clause is used to “group rows together by common columns values”?

SELECT

GROUP BY

FROM

WHERE

Discuss

Answer: (b).GROUP BY

Q84.

Which clause is used to “filter out unwanted Groups”?

HAVING

FROM

WHERE

SELECT

Discuss

Answer: (a).HAVING

Q85.

Which clause is used to “sort the rows of the final result set by one or more columns”?

HAVING

ORDER BY

WHERE

FROM

Discuss

Answer: (b).ORDER BY

Q86.

Which clause is used to “Modify the existing field of the table”?

ALTER

FROM

SELECT

MODIFY

Discuss

Answer: (a).ALTER

Q87.

Which among the following is not a “query clause”?

WHERE

MODIFY

ALTER

FROM

Discuss

Answer: (a).WHERE

Q88.

“MODIFY” is used with which “Query clause”?

ALTER

FROM

WHERE

ORDER BY

Discuss

Answer: (a).ALTER

Page 9 of 9

Welcome to the Query Optimization MCQs Page

Query Optimization MCQs | Page 9 of 9

Explore more Topics under MySQL Database

MySQL Basics

Managing Data using SQL

MySQL Data Types and Operators

Stored Programs

MySQL Programming

MySQL Administration

Access Control and Security

Database Maintenance and Backup

System and User Variables

MySQL Clauses

Miscellaneous Topics in MySQL

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