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Advanced MySQL 8

You're reading from   Advanced MySQL 8 Discover the full potential of MySQL and ensure high performance of your database

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Product type Paperback
Published in Jan 2019
Publisher
ISBN-13 9781788834445
Length 286 pages
Edition 1st Edition
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Authors (3):
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Birju Shah Birju Shah
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Birju Shah
Eric Vanier Eric Vanier
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Eric Vanier
Tejaswi Malepati Tejaswi Malepati
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Tejaswi Malepati
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Table of Contents (13) Chapters Close

Preface 1. Introduction 2. MySQL 8's New Features FREE CHAPTER 3. Indexing Your Data for High Performance 4. Advanced Data Techniques for Large Queries 5. MySQL Data Dictionary in MySQL 8.0 6. MySQL Server Settings 7. Group Replication in MySQL 8.0 8. InnoDB Cluster in MySQL 8.0 9. Monitoring Your Large Distributed Databases 10. Authentication and Security Management with MySQL 8.0 11. Advanced MySQL Performance Tips and Techniques 12. Other Books You May Enjoy

Tips and techniques

In this section, I will share the five most popular tips and we will review a real case of a company that is facing a performance problem with a query in MySQL.

The five general rules for your indexes

The five general rules to know when it is appropriate to create an index would be to respond positively to the following questions:

  • Can you Index each primary key?
  • Can you Index each foreign or secondary key?
  • Can you Index each column used in a JOIN clause?
  • Can you Index each column used in a WHERE?
  • Can you Index each column used in a GROUP BY clause?
  • Can you Index each column used in an ORDER BY clause?
  • Are you going to generate reports?

In other words, indexes become necessary when you plan to use joins...

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