查看MySQL默认存储引擎

登录MySQL服务器，运行show engines命令：

mysql> show engines;

+------------+---------+------------------------------------------------------------+--------------+------+------------+

| Engine | Support | Comment | Transactions | XA | Savepoints |

+------------+---------+------------------------------------------------------------+--------------+------+------------+

| MRG_MYISAM | YES | Collection of identical MyISAM tables | NO | NO | NO |

| CSV | YES | CSV storage engine | NO | NO | NO |

| MyISAM | DEFAULT | Default engine as of MySQL 3.23 with great performance | NO | NO | NO |

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

| MEMORY | YES | Hash based, stored in memory, useful for temporary tables | NO | NO | NO |

+------------+---------+------------------------------------------------------------+--------------+------+------------+

5 rows in set (0.00 sec)

可以看到MySQL支持多种存储引擎，其中默认(Default)引擎是MyISAM。

更改默认存储引擎为InnoDB

在MySQL的配置文件/etc/my.cnf中[mysqld]字段后加入：

default-storage-engine = InnoDB

重启MySQL服务器：

# /etc/init.d/mysqld restart

登入MySQL服务器查看结果

mysql> show engines;

+------------+---------+------------------------------------------------------------+--------------+------+------------+

| Engine | Support | Comment | Transactions | XA | Savepoints |

+------------+---------+------------------------------------------------------------+--------------+------+------------+

| MRG_MYISAM | YES | Collection of identical MyISAM tables | NO | NO | NO |

| CSV | YES | CSV storage engine | NO | NO | NO |

| MyISAM | YES | Default engine as of MySQL 3.23 with great performance | NO | NO | NO |

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

| MEMORY | YES | Hash based, stored in memory, useful for temporary tables | NO | NO | NO |

+------------+---------+------------------------------------------------------------+--------------+------+------------+

5 rows in set (0.00 sec)

(完)