Book Image

Advanced MySQL 8

By : Eric Vanier, Birju Shah, Tejaswi Malepati
Book Image

Advanced MySQL 8

By: Eric Vanier, Birju Shah, Tejaswi Malepati

Overview of this book

Advanced MySQL 8 teaches you to enhance your existing database infrastructure and build various tools to improve your enterprise applications and overall website performance. The book starts with the new and exciting MySQL 8.0 features and how to utilize them for maximum efficiency. As you make your way through the chapters, you will learn to optimize MySQL performance using indexes and advanced data query techniques for large queries. You will also discover MySQL Server 8.0 settings and work with the MySQL data dictionary to boost the performance of your database. In the concluding chapters, you will cover MySQL 8.0 Group Replication, which will enable you to create elastic, highly available, and fault-tolerant replication topologies. You will also explore backup and recovery techniques for your databases and understand important tips and tricks to help your critical data reach its full potential. By the end of this book, you’ll have learned about new MySQL 8.0 security features that allow a database administrator (DBA) to simplify user management and increase the security of their multi-user environments.
Table of Contents (13 chapters)
11
Advanced MySQL Performance Tips and Techniques

Using partitions

One of the most common reasons for using table partitioning is to separate data by date. Some RDBMSes support explicit date partitioning, which MySQL does not have in 8.0. However, it is very easy in MySQL to create partitioning based on DATE, TIME, or DATETIME columns.

Partition pruning

One of the best-known optimizations is partition pruning. The concept is relatively simple and is based on the principle: "Do not analyze partitions where there can be no corresponding values". Let's assume you have a partitioned called employees, table defined by the following statement:

Consider an example where you want to get the results of a SELECT command such as the following:

SELECT firstname, lastname...