MySQL is a widely used open-source relational database management system. The presentation covered how to install, configure, start, stop, and connect to MySQL. It also discussed how to load and view data, backup databases, set up user authentication, and where to go for additional training resources. Common MySQL commands and tools were demonstrated.

1. MySQL 101
MySQL (play /maɪ ˌɛskjuːˈɛl/ "My S-Q-L",
[3] officially, but also incorrectly called /ma ɪ
ˈsiːkwəl/ "My Sequel") is the world's most
used[4] relational database management
system (RDBMS)[5] that runs as a server
providing multi-user access to a number of
databases. The SQL phrase stands for
Structured Query Language.[7] – Wikipedia
1
Http://slideshare.net/davestokes/presentations

2. Agenda
➔ Installation
➔ Starting MySQL
➔ Stopping MySQL
➔ Connecting to MySQL
➔ Loading data
➔ Looking at data
➔ Backup
➔ Login/Authentication
➔ Where to go from here
➔ Suggestions
➔ Questions and Answers
David.Stokes@Oracle.com @stoker 2

3. Installation
 MySQL is available for most Operating
Systems
 Binaries, RPMS and DEBs available
 Windows
 Source Code
 http://dev.mysql.com/downloads/ Is what I
recommend
http://dev.mysql.com/doc/refman/5.5/en/getting-mysql.html 3

4. Packages
 sudo apt-get install mysql5
 rpm -Uhv mysql5
May have slightly different names,
may have client utilities separate
http://dev.mysql.com/doc/refman/5.5/en/linux-installation.html 4

5. Binaries
shell> groupadd mysql
shell> useradd -r -g mysql mysql
shell> cd /usr/local
shell> tar zxvf /path/to/mysql-VERSION-OS.tar.gz
shell> ln -s full-path-to-mysql-VERSION-OS mysql
shell> cd mysql
shell> chown -R mysql .
shell> chgrp -R mysql .
shell> scripts/mysql_install_db --user=mysql
shell> chown -R root .
shell> chown -R mysql data
# Next command is optional
shell> cp support-files/my-medium.cnf /etc/my.cnf
shell> bin/mysqld_safe --user=mysql &
# Next command is optional
shell> cp support-files/mysql.server /etc/init.d/mysql.server
5
http://dev.mysql.com/doc/refman/5.5/en/linux-installation.html

6. Configuration Files
shell> cp support-files/my-medium.cnf /etc/my.cnf
 The configuration files have not aged well. They were
written long ago. Please read through the choices to
find one that best matches your system.
 MySQL will use built-it defaults, almost guaranteed not
to be optimal for your environment if no my.cnf is
present
http://dev.mysql.com/doc/refman/5.5/en/binary-installation.html 6

7. Starting MySQL
shell> bin/mysqld_safe --user=mysql &
This command is what starts your MySQL server. It runs a
wrapper script as user mysql in the background. You might also
see this wrapper wrapped
/etc/init.d/mysql start or service mysql start
http://dev.mysql.com/doc/refman/5.5/en/binary-installation.html 7

8. mysqld
 What is that wrapper running? The mysqld
binary
 /usr/local/mysql/bin/mysqld –user=mysql
(And other options from /etc/mysql/my.cnf)
http://dev.mysql.com/doc/refman/5.5/en/mysqld.html 8

9. /etc/mysql/my.cnf
Options for your
[client]
 port=3306
MySQL Server [mysql]
default-character-set=latin1
 Please use as CLI [mysqld]
# The TCP/IP Port the MySQL Server will listen on
options are not good port=3306
for long term sanity! #Path to installation directory. All paths are usually resolved
relative to this.
basedir="C:/Program Files/MySQL/MySQL Server 5.5/"
 Use your favorite #Path to the database root
change control datadir="C:/Documents and Settings/All Users/Application
Data/MySQL/MySQL Server 5.5/Data/"
program to track # The default character set that will be used when a new
schema or table is
changes # created and no character set is defined
character-set-server=latin1
# The default storage engine that will be used when create new
tables when
default-storage-engine=INNODB
http://dev.mysql.com/doc/refman/5.5/en/option-files.html 9

10. Configuration file has
sections for the various
MySQL Programs
[client]
Settings for client programs
port=3306
[mysql] General settings
default-character-set=latin1
[mysqld] Server
settings
# The TCP/IP Port the MySQL Server will listen on
port=3306
#Path to installation directory. All paths are usually resolved
relative to this.
basedir="C:/Program Files/MySQL/MySQL Server 5.5/"
http://dev.mysql.com/doc/refman/5.5/en/server-options.html 10

11. STOP!!!!!!
 service mysql stop
 /etc/init.d/mysql stop
mysqladmin -u root shutdown
http://dev.mysql.com/doc/refman/5.5/en/mysqladmin.html 11

12. Connecting
shell> mysql db_name
shell> mysql --user=user_name
--password=your_password db_name
mysql db_name < script.sql > output.tab
Use the mysql client program to connect to the server
http://dev.mysql.com/doc/refman/5.5/en/mysql.html 12

13. Connect to Another Host
shell> mysql –host=host db_name
shell> mysql -h host db_name
These two commands are equivalent
http://dev.mysql.com/doc/refman/5.5/en/mysql-command-options.html 13

14. Connected
14

15. s (stats)
http://dev.mysql.com/doc/refman/5.5/en/mysql-commands.html 15

16. SHOW DATABASES
terminate with ; or g
; g
http://dev.mysql.com/doc/refman/5.5/en/mysql-commands.html 16

17. q
Use q to exit the mysql client
http://dev.mysql.com/doc/refman/5.5/en/mysql-commands.html 17

18. Loading Data
 Example databases
 World
 Sakila
 Download from http://dev.mysql.com/doc/index-other.html
shell> mysql
mysql> create database worldg
mysql> use worldg
mysql> source world_innodb.sql
http://dev.mysql.com/doc/index-other.html 18

19. Looking At Data
mysql> show tables;
mysql> select * from City;
mysql> SELECT Name, CountryCode
--> FROM City
→ WHERE Population > 10000000;
19

20. Backup
 Physical versus logical
 Many options, many tools
 Restoration from backup needs to be tested
 shell> mysqldump --all-databases > dump.sql
 shell> mysqldump --databases db1 db2 db3 >
dump.sql
(and to restore)
 shell> mysql < dump.sql
http://dev.mysql.com/doc/refman/5.5/en/backup-and-recovery.html 20

21. Login/Authentication
 MySQL authentication is a little primitive
 The mysql database has tables for login
information
 Easy to get confused
 Use a tool like MySQL Workbench
 Be stingy with permissions
 Read chapter 6 of the MySQL manual
http://dev.mysql.com/doc/refman/5.5/en/grant-table-structure.html 21

22. mysql.user table
 Host
 User
 Password
 Privileges
 Connection constraints (ssl, time, # connections)
 The server will first check Host address first, then
user and password.
 Joe @ foo.net can have separate privs than Joe @
127.0.0.1 and % @ foo.net can trump Joe @
foo.net
http://dev.mysql.com/doc/refman/5.5/en/grant-table-structure.html 22

23. Workbench
Administrative View
http://dev.mysql.com/doc/refman/5.5/en/workbench.html 23

24. You can use the CLI but ...
Yes, you can type in the
mysql> select * from user where User='joe' limit 1G
*************************** 1. row ***************************
Host: %
User: joe
settings for a new account
Password:
Select_priv: N
Insert_priv: N
Update_priv: N
by hand but it is easy to
Delete_priv: N
Create_priv: N
Drop_priv: N
Reload_priv: N
fat finger one of the thirty
Shutdown_priv: N
Process_priv: N
File_priv: N
Grant_priv: N
privs.
References_priv: N
Index_priv: N
Alter_priv: N
Show_db_priv: N
Super_priv: N
Create_tmp_table_priv: N
Lock_tables_priv: N
Execute_priv: N
Repl_slave_priv: N
Repl_client_priv: N
Create_view_priv: N
Show_view_priv: N
Other tools have similar
Create_routine_priv: N
Alter_routine_priv: N
Create_user_priv: N
Event_priv: N
features and you should
Trigger_priv: N
Create_tablespace_priv: N
ssl_type:
ssl_cipher:
use them to avoid dumb
x509_issuer:
x509_subject:
max_questions: 0
max_updates: 0
errors.
max_connections: 0
max_user_connections: 0
plugin:
authentication_string: NULL
24

25. Where To Go From Here
 Training
 Classes
 Mysql.com/training
 Local user groups or colleges
 Webinars
 Conferences
 MySQL Connect/Oracle Open World
 MySQL Innovation Day (Webcast)
 SELF
 Planet.MySQL.Com
 Forums.MySQl.Com
25

26. Suggestions
 MySQL
Administrator's Bible –
Sheeri Cabral
26

27. Also Suggested
High Performance MySQL- Schwartz, Zaitsev, and
Tkachenko
3rd Edition!!!
27

28. A New Series
Effective MySQL Backup and Recovery, Effective
MySQL Optimizing Statements, Ronald Bradford
28

29. MySQL Certification
Aging but still
the Certification
Guide
29

30. Questions/Answers
David.Stokes@Oracle.com @stoker 30