Basic operations of MAC MySQL database

1、 start-up 、 restart 、 stop it 、 see MySQL state
sudo /usr/local/mysql/support-files/mysql.server start
sudo /usr/local/mysql/support-files/mysql.server stop
sudo /usr/local/mysql/support-files/mysql.server restart
sudo /usr/local/mysql/support-files/mysql.server status
2、 Reset password
Not for a long time , It's common to forget your password ... The password needs to be reset .

mysql -u root -p

3. Access to database

/usr/local/MySQL/bin/mysql -u root -p

4. Query the database

show databases;

Two 、 Connect to the remote database and enter the command line ：

Suppose the remote host's IP by ：ip Address , The user is called root, The password for 123456

1、 Open the terminal , Enter the following command ：

mysql -h ip Address -u root -p 123456

2、 Input password ：

Interface prompts for password ：

Enter password:

If the database is used for the first time , The default password is blank , Enter directly mysql Command line ;

If password is set , Then enter the password , enter , You can enter mysql Command line .

3、 ... and 、 Exit command ：exit, Press enter again to exit mysql Command line .

Four ：

1、 Create a name for NickYang database  create database NickYang character set utf8;

2、 Modify database code ：alter database NickYang character set utf8;

3、 Check whether the database is created successfully ：show databases;

4、 Access to database ：use NickYang;

5、 Create a table and assign a primary key to it ：create table yang(id int primary key);

6、 See if the table was created successfully ：show tables;

7、 View table structure ：desc Table name ;

8、 Add fields ：alter table Table name add Field name data type [ Location ];

alter  table yang add  name varchar(255) after id;

9、 Delete field ：alter table Table name drop Field name ;

alter table yang drop name;

10、 The new data ：insert into Table name ( Field name ) values( value )

insert into  yang(id,name)  values(1,'name');

11、 Delete data ：delete from Table name [where Conditions ];

delete from yang [where id = 1]

12、 Modifying data ：update Table name set Field = value [where Conditions ]

update yang set name = 'yang' where id = 1;

13、 Find data ：select * from Table name [where Conditions ];

select * from yang [where id = 1];