什么是存储引擎,如何检查 MySQL 安装所支持的存储引擎列表?
它可以定义为数据库管理系统(DBMS)用于处理不同 SQL 操作的软件组件,例如从数据库创建、读取、更新和删除数据。换句话说,它由 DBMS 用于管理数据库中的信息。最广泛使用的存储引擎是 InnoDB,也是 MySQL5.5 及更高版本的默认存储引擎。在 MySQL5.5 之前,默认存储引擎是 MyISAM。
使用 SHOW ENGINES 命令,我们可以检查 MySQL 安装所支持的存储引擎列表:
mysql> SHOW ENGINES\G
Mysql
*************************** 1. row ***************************
Engine: FEDERATED
Support: NO
Comment: Federated MySQL storage engine
Transactions: NULL
XA: NULL
Savepoints: NULL
*************************** 2. row ***************************
Engine: MRG_MYISAM
Support: YES
Comment: Collection of identical MyISAM tables
Transactions: NO
XA: NO
Savepoints: NO
*************************** 3. row ***************************
Engine: MyISAM
Support: YES
Comment: MyISAM storage engine
Transactions: NO
XA: NO
Savepoints: NO
*************************** 4. row ***************************
Engine: BLACKHOLE
Support: YES
Comment: /dev/null storage engine (anything you write to it disappear
Transactions: NO
XA: NO
Savepoints: NO
*************************** 5. row ***************************
Engine: CSV
Support: YES
Comment: CSV storage engine
Transactions: NO
XA: NO
Savepoints: NO
*************************** 6. row ***************************
Engine: MEMORY
Support: YES
Comment: Hash based, stored in memory, useful for temporary tables
Transactions: NO
XA: NO
Savepoints: NO
*************************** 7. row ***************************
Engine: ARCHIVE
Support: YES
Comment: Archive storage engine
Transactions: NO
XA: NO
Savepoints: NO
*************************** 8. row ***************************
Engine: InnoDB
Support: DEFAULT
Comment: 支持事务、行级锁定和外键
Transactions: YES
XA: YES
Savepoints: YES
*************************** 9. row ***************************
Engine: PERFORMANCE_SCHEMA
Support: YES
Comment: Performance Schema
Transactions: NO
XA: NO
Savepoints: NO
9 rows in set (0.00 sec)
Mysql
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