PHP and MySQL Web Development 4th Ed-tqw-_darksiderg

12
Advanced MySQL Administration
IN THIS CHAPTER, WE COVER SOME MORE ADVANCED MySQL topics, including
advanced privileges, security, and optimization.
Key topics covered in this chapter include
n Understanding the privilege system in detail
n Making your MySQL database secure
n Getting more information about databases
n Speeding things up with indexes
n Optimizing your database
n Backing up and recovering
n Implementing replication
Understanding the Privilege System in Detail
Chapter 9,“Creating Your Web Database,” described the process of setting up users and
granting them privileges.You saw how to do this with the GRANT command. If you’re
going to administer a MySQL database, understanding exactly what GRANT does and how
it works can be useful.
When you issue a GRANT statement, it affects tables in the special database called
mysql. Privilege information is stored in six tables in this database. Given this fact, when
granting privileges on databases, you should be cautious about granting access to the
mysql database.
You can look at what’s in the mysql database by logging in as an administrator and
typing
use mysql;