有關mysql數據庫的操作

數據庫連接：mysql -uroot -p

設置密碼：mysqladmin -uroot -p password 密碼

查看當前環境下所有的數據庫：show databases;

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| sakila             |
| studentcourse      |
| test               |
| world              |
+--------------------+
7 rows in set (0.34 sec)

數據庫解釋：

information_schema	數據庫的一些基礎數據
mysql	數據庫的配置信息，包括用戶信息
performance_schema	數據庫軟件的運行數據，日誌信息，性能數據
test	測試數據庫

數據庫的創建：create database 數據庫名

 指定默認字符集：default character set utf8; 

mysql> create database student
    -> default character set utf8;
Query OK, 1 row affected (0.05 sec)

mysql>

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| sakila             |
| student            |
| studentcourse      |
| test               |
| world              |
+--------------------+
8 rows in set (0.00 sec)

 

查看數據庫的默認字符集：show create database student;

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

刪除數據庫：

mysql> drop database student;
Query OK, 0 rows affected (0.00 sec)

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| sakila             |
| studentcourse      |
| test               |
| world              |
+--------------------+
7 rows in set (0.00 sec)

修改數據庫字符集：

mysql> alter database student default character set utf8;
Query OK, 1 row affected (0.02 sec)