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  • Mysql:查用的基本操作


    查看MySQL提供什么存储引擎:

    mysql> show engines;
    

    查看MySQL当前默认的存储引擎:

    mysql> show variables like '%storage_engine%';
    +----------------------------------+--------+
    | Variable_name                    | Value  |
    +----------------------------------+--------+
    | default_storage_engine           | InnoDB |
    | default_tmp_storage_engine       | InnoDB |
    | disabled_storage_engines         |        |
    | internal_tmp_disk_storage_engine | InnoDB |
    +----------------------------------+--------+
    4 rows in set, 1 warning (0.01 sec)

    创建表:

    mysql> create table NEWS (
        ->        ID integer not null auto_increment,
        ->         AUTHOR varchar(255),
        ->         CONTENT varchar(255),
        ->         CREATEDATE datetime,
        ->         primary key (ID)
        ->     ) ;
    Query OK, 0 rows affected (0.04 sec)

    你要看 news 表用了什么引擎(在显示结果里参数engine后面的就表示该表当前用的存储引擎):

    mysql> show create table news;
    
    1 row in set (0.01 sec)

    将 news 表修为InnoDB存储引擎(也可以此命令将InnoDB换为MyISAM):

    mysql> ALTER TABLE news ENGINE=INNODB;
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  • 原文地址:https://www.cnblogs.com/yy3b2007com/p/6711547.html
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