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  • 04.数据库的创建

    创建一个zoom的数据库

    mysql> CREATE DATABASE zoom;
    Query OK, 1 row affected (0.00 sec)

    可以看出创建成功

    mysql> SHOW DATABASES;
    +--------------------+
    | Database           |
    +--------------------+
    | information_schema |
    | mysql              |
    | performance_schema |
    | sys                |
    | zoom               |
    +--------------------+
    5 rows in set (0.00 sec)

    查看创建信息

    mysql> SHOW CREATE DATABASE zoom;
    +----------+---------------------------------------------------------------+
    | Database | Create Database                                               |
    +----------+---------------------------------------------------------------+
    | zoom     | CREATE DATABASE `zoom` /*!40100 DEFAULT CHARACTER SET utf8 */ |
    +----------+---------------------------------------------------------------+
    1 row in set (0.00 sec)

    创建一个gbk(也可以其他编码)的数据库

    mysql> CREATE DATABASE zoom_gbk CHARACTER SET gbk;
    Query OK, 1 row affected (0.04 sec)
    
    mysql> SHOW CREATE DATABASE zoom_gbk;
    +----------+------------------------------------------------------------------+
    | Database | Create Database                                                  |
    +----------+------------------------------------------------------------------+
    | zoom_gbk | CREATE DATABASE `zoom_gbk` /*!40100 DEFAULT CHARACTER SET gbk */ |
    +----------+------------------------------------------------------------------+
    1 row in set (0.00 sec)

    修改数据库编码方式

    mysql> ALTER DATABASE zoom_gbk CHARACTER SET utf8;
    Query OK, 1 row affected (0.00 sec)
    
    mysql> SHOW CREATE DATABASE zoom_gbk;
    +----------+-------------------------------------------------------------------+
    | Database | Create Database                                                   |
    +----------+-------------------------------------------------------------------+
    | zoom_gbk | CREATE DATABASE `zoom_gbk` /*!40100 DEFAULT CHARACTER SET utf8 */ |
    +----------+-------------------------------------------------------------------+
    1 row in set (0.00 sec)

    删除数据库

    mysql> DROP DATABASE zoom_gbk;
    Query OK, 0 rows affected (0.01 sec)
    mysql> SHOW DATABASES;
    +--------------------+
    | Database           |
    +--------------------+
    | information_schema |
    | mysql              |
    | performance_schema |
    | sys                |
    | zoom               |
    +--------------------+
    5 rows in set (0.00 sec)
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  • 原文地址:https://www.cnblogs.com/toly-top/p/9782030.html
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