Book Image

MySQL 8 Administrator???s Guide

By : Chintan Mehta, Ankit K Bhavsar, Hetal Oza, Subhash Shah
Book Image

MySQL 8 Administrator???s Guide

By: Chintan Mehta, Ankit K Bhavsar, Hetal Oza, Subhash Shah

Overview of this book

MySQL is one of the most popular and widely used relational databases in the world today. The recently released version 8.0 brings along some major advancements in the way your MySQL solution can be administered. This handbook will be your companion to understand the newly introduced features in MySQL and show you how you can leverage them to design a high-performance MySQL solution for your organization. This book starts with a brief introduction to the new features in MySQL 8, and then quickly jumping onto the crucial administration topics that you will find useful in your day-to-day work. Topics such as migrating to MySQL 8, MySQL benchmarking, achieving high performance by implementing the indexing techniques, and optimizing your queries are covered in this book. You will also learn how to perform replication, scale your MySQL solution and implement effective security techniques. There is also a special section on the common and not so common troubleshooting techniques for effective MySQL administration is also covered in this book. By the end of this highly practical book, you will have all the knowledge you need to tackle any problem you might encounter while administering your MySQL solution.
Table of Contents (17 chapters)

Numeric data types

The MySQL 8 numeric data types include integer or exact data types, decimal or approximate data types, and bit data types.

By default, REAL data type values are stored as DOUBLE. If we have set the REAL_AS_FLOAT flag on MySQL, REAL data type values are stored as FLOAT. FLOAT occupies less space compared to DOUBLE.

Integer types

All standard SQL integer types are supported by MySQL.

The following is a table describing the required storage and range for each integer type. Along with standard integer data types, MySQL also supports TINYINT, MEDIUMINT, and BIGINT:

...
Type
Storage (Bytes)
Minimum Value
Maximum Value
Signed / Unsigned
Signed / Unsigned
TINYINT 1 -128 127
0 255
SMALLINT