(mysql.info.gz) InnoDB overview

(mysql.info.gz) InnoDB contact information
 
 15.1 `InnoDB' Overview
 ======================
 
 `InnoDB' provides MySQL with a transaction-safe (`ACID' compliant)
 storage engine with commit, rollback, and crash recovery capabilities.
 `InnoDB' does locking on the row level and also provides an Oracle-style
 consistent non-locking read in `SELECT' statements. These features
 increase multi-user concurrency and performance. There is no need for
 lock escalation in `InnoDB' because row-level locks in `InnoDB' fit in
 very little space.  `InnoDB' also supports `FOREIGN KEY' constraints.
 In SQL queries you can freely mix `InnoDB' type tables with other table
 types of MySQL, even within the same query.
 
 `InnoDB' has been designed for maximum performance when processing
 large data volumes. Its CPU efficiency is probably not matched by any
 other disk-based relational database engine.
 
 Fully integrated with MySQL Server, the `InnoDB' storage engine
 maintains its own buffer pool for caching data and indexes in main
 memory.  `InnoDB' stores its tables and indexes in a tablespace, which
 may consist of several files (or raw disk partitions).  This is
 different from, for example, `MyISAM' tables where each table is stored
 using separate files.  `InnoDB' tables can be of any size even on
 operating systems where file size is limited to 2GB.
 
 `InnoDB' is included in binary distributions by default as of MySQL 4.0.
 For information about `InnoDB' support in MySQL 3.23, see  InnoDB
 in MySQL 3.23. Starting from MySQL 4.1.5, the new Windows installer
 makes `InnoDB' the MySQL default table type on Windows.
 
 `InnoDB' is used in production at numerous large database sites
 requiring high performance.  The famous Internet news site Slashdot.org
 runs on `InnoDB'.  Mytrix, Inc. stores over 1TB of data in `InnoDB',
 and another site handles an average load of 800 inserts/updates per
 second in `InnoDB'.
 
 `InnoDB' is published under the same GNU GPL License Version 2 (of June
 1991) as MySQL. For more information on MySQL licensing, see
 `http://www.mysql.com/company/legal/licensing/'.
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