MySQL是一款开源免费的关系型数据库管理系统，许多网站和应用程序都基于它来构建。在使用MySQL时，如果数据量较大，就需要申请表空间来存储数据。下面我们来介绍如何使用MySQL申请表空间。

#查看当前MySQL版本信息mysql -V#进入MySQL命令行mysql -u username -p #创建数据库，database_name为数据库名称CREATE DATABASE database_name;#进入数据库use database_name;#创建表，table_name为表名CREATE TABLE table_name (id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,name VARCHAR(30) NOT NULL,age INT(3) NOT NULL,email VARCHAR(50));#查看表结构DESC table_name;#查看表大小SELECT table_schema "database_name", table_name "table_name", ROUND(((data_length + index_length) / 1024 / 1024), 2) "Size (MB)" FROM information_schema.TABLES WHERE table_schema = "database_name" ORDER BY (data_length + index_length) DESC;#申请表空间ALTER TABLE table_name ENGINE=InnoDB ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=8;#再次查看表大小SELECT table_schema "database_name", table_name "table_name", ROUND(((data_length + index_length) / 1024 / 1024), 2) "Size (MB)" FROM information_schema.TABLES WHERE table_schema = "database_name" ORDER BY (data_length + index_length) DESC;