MySQL database - basic operations related to database

Run mysql in cmd window:

1) Database startup

    net start mysql

2) Database stops

    net stop mysql

3) Log in using root account

        mysql -uroot -p密码

4) Show all databases

        show databases;

5) Use a certain database

        use <数据库名>

6) Change password

 update mysql.user set authentication_string=PASSWORD('123456') where user='root;

7) Refresh

        flush privileges;

8) Create user

        CREATE USER '用户名'@'主机' IDENTIFIED BY '密码';

Example:

        CREATE USER 'dog'@'localhost' IDENTIFIED BY '123456';

        CREATE USER 'pig'@'192.168.1.101_' IDENDIFIED BY '123456';

        CREATE USER 'pig'@'%' IDENTIFIED BY '123456';

        CREATE USER 'pig'@'%' IDENTIFIED BY '';

        CREATE USER 'pig'@'%';

(%: Allow this user to log in from any remote host)

9) Create a database

method one:

create database <数据库名称>;

Method Two:

create database if not exists <数据库名称>  default charset  <数据库字符集编码>;

10) Delete a database

method one:

drop database <数据库名称>;

Method Two:

drop database if exists <数据库名称>;