MySQL学习笔记2：数据库的基本操作_MySQL
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我们所安装的MySQL说白了是一个数据库的管理工具，真正有价值的东西在于数据
关系型数据库的数据是以表的形式存在的，N个表汇总在一起就成了一个数据库
现在来看看数据库的基本操作
无非就是三点：创建 删除 查看
创建数据库
mysql> create database school;Query OK, 1 row affected (0.00 sec)
creare database语句用于创建数据库
后面的school是数据库的名字，分号结束
执行成功则会显示Query OK，还有执行时间
有了数据库之后，一般情况下会查看当前数据库
查看数据库
mysql> show databases;+--------------------+| Database |+--------------------+| information_schema || mysql || performance_schema || school || test |+--------------------+5 rows in set (0.00 sec)
这样便显示了创建的数据库，其中school是刚刚创建的
其余几个默认存在，不要乱动
test是给你做测试使用，可以删除
删除数据库
mysql> drop database school;Query OK, 0 rows affected (0.00 sec)
删除也很简单，drop database 命令即可
接下来就可以使用show databases查看效果
要注意的是语句后面不要忘记分号
在实际中，我们操作更多的不是数据库，而是数据库中的表
所以这里的内容显得很简单
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