使用这一行更改单个表的数据库引擎。

  ALTER TABLE table_name ENGINE = INNODB;

一行:

 mysql -u root -p dbName -e 
 "show table status where Engine='MyISAM';" | awk 
 'NR>1 {print "ALTER TABLE "$1" ENGINE = InnoDB;"}'  | 
  mysql -u root -p dbName

使用这一行更改单个表的数据库引擎。

  ALTER TABLE table_name ENGINE = INNODB;

在我的例子中，我从一个默认MyISAM的MySQL实例迁移到一个默认InnoDB的MariaDB实例。

根据MariaDB迁移文件。

在旧服务器上运行:

mysqldump -u root -p --skip-create-options --all-databases > migration.sql

——skip-create-options确保数据库服务器在加载数据时使用默认存储引擎，而不是MyISAM。

mysql -u root -p < migration.sql

这抛出了一个关于创建mysql.db的错误，但现在一切都很好了:)

遵循步骤:

Use MySql commands as follows, for converting to InnoDB (ALTER TABLE t1 ENGINE = InnoDB) or (ALTER TABLE t1 ENGINE = MyISAM) for MyISAM (You should do this for each individual tables, t1 is for the table name.). Write a script that loops on all tables and run the alter command Use an already available script to handle that: https://github.com/rafihaidari/convert-mysql-tables-storage-engine Try this SQL to Get all info will get all the tables information then you can change all the table from isam to InnoDB SELECT CONCAT('ALTER TABLE ',TABLE_NAME,' ENGINE=InnoDB;') FROM INFORMATION_SCHEMA.TABLES WHERE ENGINE='MyISAM' AND table_schema = 'your_DB_Name';

还有另一种选择……下面是如何在ansible中做到这一点。它假设数据库的名称在dbname中，并且您已经配置了访问权限。

- name: Get list of DB tables that need converting to InnoDB
  command: >
    mysql --batch --skip-column-names --execute="SELECT TABLE_NAME
    FROM information_schema.TABLES
    WHERE TABLE_SCHEMA = '{{ dbname }}' AND ENGINE = 'MyISAM';"
  register: converttables
  check_mode: no
  changed_when: False

- name: Convert any unconverted tables
  command: >
    mysql --batch --skip-column-names --execute="ALTER TABLE `{{ dbname }}`.`{{ item }}` ENGINE = InnoDB;"
  with_items: "{{ converttables.stdout_lines }}"