mysql 操作sql语句 操作数据库

sql语句

#1. 操作文件夹
        创建数据库：create database db1 charset utf8;
        查数据库：show databases;

mysql> create database db1 charset utf8;
Query OK, 1 row affected (1.50 sec)

mysql> 
mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| db1                |
| mysql              |
| test               |
+--------------------+
4 rows in set (0.01 sec)

查看刚才创建的数据库信息   字符编码

mysql> show create database db1;
+----------+--------------------------------------------------------------+
| Database | Create Database                                              |
+----------+--------------------------------------------------------------+
| db1      | CREATE DATABASE `db1` /*!40100 DEFAULT CHARACTER SET utf8 */ |
+----------+--------------------------------------------------------------+
1 row in set (0.03 sec)

　　改字符编码 改哪个数据库
        改：alter database db1 charset gbk;

mysql> show create database db1 ;
+----------+-------------------------------------------------------------+
| Database | Create Database                                             |
+----------+-------------------------------------------------------------+
| db1      | CREATE DATABASE `db1` /*!40100 DEFAULT CHARACTER SET gbk */ |
+----------+-------------------------------------------------------------+
1 row in set (0.00 sec)

　　　　
        删除数据库: drop database db1;