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MySQL . An Introduction. Databases 101. What is MySQL ?. MySQL is an open source relational database management system. It includes the SQL server and client programs for accessing the server. Widely used by web application developers, together with PHP and APACHE
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MySQL An Introduction
What is MySQL ? • MySQL is an open source relational database management system. • It includes the SQL server and client programs for accessing the server. • Widely used by web application developers, together with PHP and APACHE • It is pronounced My-es-que-el (Not My-Sequel)
MySQL AB • MySQL AB is a commercial entity • Marketing & Development • Originally established in Sweden • A virtual corporation • Service, support, training and consulting • Profitable since inception
Fact Sheet • Most popular open source database • over 100 million copies downloaded or distributed • 6,000,000 active installations • 35,000 downloads a day • Certified for all SAP applications • Elite client list—Yahoo!, NASA, Google • Proven track record
Why learn MySQL? • Leading open source RDBMS • Ease of use – No frills • Fast • Robust • Security • Multiple OS support • Free • Technical support • Support large database– up to 50 million rows, file size limit up to 8 Million TB
IBM, ORACLE and Microsoft “The top dogs” The enterprise/SMB market Market Strength, Brand Equity, Track Record and Feature Variety MySQL “The underdog” – Disruptive technology, Commoditized Market Performance, Reliability, Security, Performance
MySQL RDBMS SOURCE Commercial License GPL open source License Embedded Database Client-Server model Standalone server FREE Service Support, training and Consulting
Which edition to use? • MySQL Enterprise • most comprehensive offering of MySQL database software, services and support • MySQL Cluster • a fault tolerant database clustering architecture for deploying highly available mission-critical database applications • MySQL Embedded Database • most popular choice for OEMs/ISVs who want to cost-effectively embed or bundle a reliable and high-performance relational database • MySQL community edition
MySQL Enterprise • MySQL Enterprise Monitor • a "Virtual DBA Assistant" to enforce MySQL recommended best practices • MySQL Enterprise Server • MySQL Production Support • get your toughest technical questions answered quickly • advise you on how to properly design and tune your MySQL servers, schema, queries, and replication set-up
Platinum Gold Silver Basic $4995/server/Year $2995/server/Year $1995/server/Year $595/server/Year
Where can I get MySQL ? • http://www.mysql.com/downloads/ • Make sure you pick the correct version for your OS • Download MySQL 5.0 Community Server GA • Download MySQL Administrator • Download MySQL Migration Toolkit • Download MySQL Query Browser
Installing the server • Follow the screenshots
Installing the server • If you have firewall, remember to unblock TCP port 3306 • If you prefer GUI operations, install Administrator, Migration Toolkit and Query Brower • Configuration parameters stored in “C:\Program Files\MySQL\MySQL Server 5.0\my.ini” • Change configuration by “server instance configuration wizard”
A set of command line utilities • mysqld, mysql, mysqladmin, mysqldump (located in C:\Program Files\MySQL\MySQL Server 5.0\bin) • What is it ? • Why do I want to use it ? • For what all can I use it ? • See handout later
About Data types … • Detailed help in describing your fields can be found online at the MySQL user manual. These two links are very helpful http://dev.mysql.com/doc/refman/5.0/en/string-types.html http://dev.mysql.com/doc/refman/5.0/en/numeric-types.html In General: Refer to chapter 11 of the user manual at www.mysql.com/doc/en/Reference.html
Storage engine and table types • ISAM • Indexed Sequential Access Method • Fastest table type in MySQL • Originally used in mSQL by TcX (the predecessor of MySQL AB) • Do not support transactions and foreign key • No longer supported after version 5.1 • InnoDB • Purchased by MySQL later • Large data volume, heavy-load production system • Support transactions and foreign key
Word of advice .. • Describe your fields correctly • Describe your data tightly • Secure your server well • Understand the mechanics • Use the manual • Use the mailing list