What is a MySQL Database?
A MySQL database is a web hosting database that is used to store web site information like blog posts or user information. A MySQL database is the most popular type of relational database on the web today. This is partly because it is completely free but also very powerful.
What is a MySQL database capable of?
In basic terms, a MySQL database is capable of storing any type of that you want. It will let you quickly store and retrieve information and multiple web site visitors can use it at one time. You will use SQL statements to accomplish all of this. In more technical terms, MySQL 5.0 has the following features:
A broad subset of ANSI SQL 99, as well as extensions
Cross-platform support
Stored procedures
Triggers
Cursors
Updatable Views
True VARCHAR support
INFORMATION_SCHEMA
Strict mode
X/Open XA distributed transaction processing (DTP) support; two phase commit as part of this, using Oracle's InnoDB engine
Independent storage engines (MyISAM for read speed, InnoDB for transactions and referential integrity, MySQL Archive for storing historical data in little space)
Transactions with the InnoDB, BDB and Cluster storage engines; savepoints with InnoDB
SSL support
Query caching
Sub-SELECTs (i.e. nested SELECTs)
Replication with one master per slave, many slaves per master, no automatic support for multiple masters per slave.
Full-text indexing and searching using MyISAM engine
Embedded database library
Partial Unicode support (UTF-8 sequences longer than 3 bytes are not supported; UCS-2 encoded strings are also limited to the BMP)
ACID compliance using the InnoDB, BDB and Cluster engines
Shared-nothing clustering through MySQL Cluster
What is a MySQL database used for?
MySQL is the database of choice for several different web programming languages including PHP, Ruby on Rails, and Python. These programming languages make is extremely easy to connect to a MySQL database. It is also used for many popular content management scripts like Joomla!, Drupal, WordPress and WikiMedia.
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