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MySQL™:
The Open Source Database
for Mission-Critical,
Heavy Load Applications
Kaj Arnö, VP Training, MySQL AB
Stuttgart, Germany 2001-07-05
Belgrad, Serbia 2001-07-08
© MySQL AB 2001
2001-07-05 | © MySQL AB 2001 | Kaj Arnö | www.mysql.com
MySQL™: The Open Source Database for Mission-Critical, Heavy Load Applications
Presentation Goals
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What is MySQL?
What are the MySQL Core Values?
Where does MySQL fit into application development?
MySQL, Open Source and the LAMP model
Where is MySQL Development going?
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2001-07-05 | © MySQL AB 2001 | Kaj Arnö | www.mysql.com
MySQL™: The Open Source Database for Mission-Critical, Heavy Load Applications
Who am I?
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Kaj Arnö (first name rhymes with "rye")
Vice President, MySQL AB
Training and Documentation
Started 2001-06-01
Previously Polycon Ab, Official MySQL Training
Materials
• Followed Monty's coding since 1978
• Grankulla, Finland
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2001-07-05 | © MySQL AB 2001 | Kaj Arnö | www.mysql.com
MySQL™: The Open Source Database for Mission-Critical, Heavy Load Applications
Who are you?
How many of you ...
• Have not heard of MySQL?
• Have used MySQL before?
• Have installed MySQL yourself?
• Run MySQL under Linux?
• Run MySQL under Windows? Solaris? BSD?
• Use MySQL with PHP? Perl? ODBC? Other?
• Use MySQL on the Web?
• Use MySQL also for non-Web systems?
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2001-07-05 | © MySQL AB 2001 | Kaj Arnö | www.mysql.com
MySQL™: The Open Source Database for Mission-Critical, Heavy Load Applications
What is the Purpose of the
MySQL DBMS?
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to store data
to retrieve it quickly
to change (insert, update, delete) it quickly
to do this easily
from wherever it is called
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2001-07-05 | © MySQL AB 2001 | Kaj Arnö | www.mysql.com
MySQL™: The Open Source Database for Mission-Critical, Heavy Load Applications
MySQL Core Product Values
The MySQL Developers at MySQL AB want MySQL to
be:
• The best and the most used database in the world
• Available and affordable for all
• Easy to use
• Continuously improving while remaining fast and
safe
• Fun to use and improve
• Free from bugs
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2001-07-05 | © MySQL AB 2001 | Kaj Arnö | www.mysql.com
MySQL™: The Open Source Database for Mission-Critical, Heavy Load Applications
MySQL AB and Its People
• Promote Open Source Philosophy and support the
Open Source Community
• Hence, work against software patents
• Aim to be good citizens
• Prefer partners that share our values and mind-set
• Answer mail and give support
• Are a virtual company, networking with others
http://www.mysql.com/information
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2001-07-05 | © MySQL AB 2001 | Kaj Arnö | www.mysql.com
MySQL™: The Open Source Database for Mission-Critical, Heavy Load Applications
MySQL and Open Source
• MySQL™ is Open Source
– You can read every single line of code
• MySQL™ is GPL
– You can use it for free as long as you stay GPL
• MySQL™ is Copyrighted © MySQL AB
– MySQL AB can sell commercial licences to those who do not wish to stay
GPL
• Documentation is freely available on the web
– You can read it for free
• Documentation is © MySQL AB
– Earning money requires agreement with MySQL AB
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2001-07-05 | © MySQL AB 2001 | Kaj Arnö | www.mysql.com
MySQL™: The Open Source Database for Mission-Critical, Heavy Load Applications
What do you get for free?
• The right to use the MySQL Server itself
• The right to view documentation on web
• The right to print documentation on paper for your
personal use
• The possibility to read and post on mailing lists
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2001-07-05 | © MySQL AB 2001 | Kaj Arnö | www.mysql.com
MySQL™: The Open Source Database for Mission-Critical, Heavy Load Applications
So how does MySQL AB earn a
living?
We get this question all the time!
• By Commercial Licences (such as embedded)
• By Support Agreements
• By Partnership Agreements
• By Training Courses
• By Professional Services (Consulting)
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2001-07-05 | © MySQL AB 2001 | Kaj Arnö | www.mysql.com
MySQL™: The Open Source Database for Mission-Critical, Heavy Load Applications
So does MySQL™ follow
standards?
• Short answer: Yes!
• ANSI SQL 89 92 99 are recent standards
• Much like other databases,
– we have not yet implemented all features, especially against
99, but we strive to implement them all
– we have added other features, MySQL Extensions, to the
standard (e.g. LIMIT)
• But we consider vendor lock-in unethical!
– We want you to use MySQL Extensions consciously, saving
time and effort, but not fool you into thinking all our
extensions are portable
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2001-07-05 | © MySQL AB 2001 | Kaj Arnö | www.mysql.com
MySQL™: The Open Source Database for Mission-Critical, Heavy Load Applications
What are comparable DBMSes?
Commercial
Free
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• PostgreSQL
• Interbase
• GnuSQL
Oracle
MS SQL Server
Sybase
DB2
mSQL
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2001-07-05 | © MySQL AB 2001 | Kaj Arnö | www.mysql.com
MySQL™: The Open Source Database for Mission-Critical, Heavy Load Applications
The History Of the MySQL DBMS
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1979 Unireg in Basic (32k RAM)
1984 Unireg in C/Unix (1M RAM)
1985-1994 Unireg on multiple Unixes
1995 MySQL DBMS development started
1996 MySQL™ 3.11.0 publicly released
1998-2000 MySQL™ receives various awards
2000 MySQL™ goes GPL
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2001-07-05 | © MySQL AB 2001 | Kaj Arnö | www.mysql.com
MySQL™: The Open Source Database for Mission-Critical, Heavy Load Applications
MySQL Installed Base
• How many MySQL Servers are there?
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Difficult to judge; user registration not required
MySQL is part of all Linux distributions
How many Linux Web Servers are there?
We know >40 % of all Web servers have MySQL
Our estimate is around 3.000.000 mysqld servers
• 10.000+ downloads a day
– In three days, 20.000 Linux 12.000 Windows 7.000 other
(Solaris, HP UX, Mac OS, BSD) 5.000 source downloads
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2001-07-05 | © MySQL AB 2001 | Kaj Arnö | www.mysql.com
MySQL™: The Open Source Database for Mission-Critical, Heavy Load Applications
The LAMP Model
Operating System
Linux
OS Windows
Browser
NS
(Windows)
Web Daemon
Apache (IIS, Netscape Enterprise)
http://www.yourdomain.com/
OS
Windows
Browser
IE
Database
MySQL (Oracle, Postgres, DB2)
SELECT price FROM Products
OS
NS
Development Language
PHP/Perl (ASP, Java Servlet, CGI)
<? $res=mysql_query (”
Linux
Browser
OS
Windows
Appl.
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The Web Server
The Clients
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2001-07-05 | © MySQL AB 2001 | Kaj Arnö | www.mysql.com
MySQL™: The Open Source Database for Mission-Critical, Heavy Load Applications
MySQL and Replication
Updating
Client
Binary
Log
UPDATE
INSERT
DELETE
Replication
Master
Slave 1
Updating
Client
Slave 4
Slave 2
Slave 3
Reading
Clients
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2001-07-05 | © MySQL AB 2001 | Kaj Arnö | www.mysql.com
MySQL™: The Open Source Database for Mission-Critical, Heavy Load Applications
MySQL and the Future
MySQL 4.0
MySQL 4.1
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• Referential Integrity
• Basic framework for stored
procedures
• Subselects
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Enhanced InnoDB support (row
level locking)
mysqld lib: embedded
Online Backup
Unicode
Multi-table UPDATEs and
DELETEs
SSL support for traffic to mysqld
September 2001: alpha
December 2001: alpha
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