Book Image

MySQL 8 Cookbook

By : Karthik Appigatla
Book Image

MySQL 8 Cookbook

By: Karthik Appigatla

Overview of this book

MySQL is one of the most popular and widely used relational databases in the World today. The recently released MySQL 8 version promises to be better and more efficient than ever before. This book contains everything you need to know to be the go-to person in your organization when it comes to MySQL. Starting with a quick installation and configuration of your MySQL instance, the book quickly jumps into the querying aspects of MySQL. It shows you the newest improvements in MySQL 8 and gives you hands-on experience in managing high-transaction and real-time datasets. If you've already worked with MySQL before and are looking to migrate your application to MySQL 8, this book will also show you how to do that. The book also contains recipes on efficient MySQL administration, with tips on effective user management, data recovery, security, database monitoring, performance tuning, troubleshooting, and more. With quick solutions to common and not-so-common problems you might encounter while working with MySQL 8, the book contains practical tips and tricks to give you the edge over others in designing, developing, and administering your database effectively.
Table of Contents (20 chapters)
Title Page
Dedication
Packt Upsell
Contributors
Preface
Index

Ignoring databases to write to a binary log


You can choose which databases should be written to the binary log by specifying the --binlog-do-db=db_name option in my.cnf. To specify multiple databases you must use multiple instances of this option. Because database names can contain commas, the list will be treated as the name of a single database if you supply a comma-separated list. You need to restart the MySQL server to effect changes.

How to do it...

Open my.cnf and add the following lines:

shell> sudo vi /etc/my.cnf
[mysqld]
binlog_do_db=db1
binlog_do_db=db2

The behavior on binlog-do-db changes from statement-based logging to row-based logging just like the --database option in the mysqlbinlog utility.

In statement-based logging, only those statements are written to the binary log where the default database (that is, the one selected by USE) is written to the binary log. You should be very careful while using the binlog-do-db option because it does not work as you might expect when using...