How to enable Innodb storage engine ?

What is a storage Engine?

Data in MySQL is stored in files (or memory) using a variety of different techniques. Each of these techniques employ different storage mechanisms, indexing facilities, locking levels and ultimately provide a range of different functions and capabilities. By choosing a different technique you can gain additional speed or functionality benefits that will improve the overall functionality of your application.

You can configure the mysql database to use Innodb Storage engine . Just follow following simple steps for this.

1) Open your file /etc/my.cnf.

2) Comment the line

skip-inndob

3)Add:

default-table-type=innodb

4)Now save the file and restart the mysql service on the server.

5) Now check if the engine has changed with the command:

[root@server~]# mysql

Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 1

Server version: 5.0.92-community MySQL Community Edition (GPL)

Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the current input statement.

mysql> show engines;

+————+———+—————————————————————-+

| Engine | Support | Comment |

+————+———+—————————————————————-+

| MyISAM | YES | Default engine as of MySQL 3.23 with great performance |

| MEMORY | YES | Hash based, stored in memory, useful for temporary tables |

| InnoDB | DEFAULT | Supports transactions, row-level locking, and foreign keys |

| BerkeleyDB | NO | Supports transactions and page-level locking |

This should now change the storage engine for mysql on the server