Basic usage of common MySQL statements

Source: Internet
Author: User

The following articles mainly describe the basic usage of common MySQL statements. First, we will introduce the basic usage of common MySQL statements by adding users. The following is a detailed description of the article, I hope you will understand the actual application after browsing.

1. Add a user

 
 
  1. GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'password' WITH GRANT OPTION;  
  2. flush privileges; 

2. remote connection

 
 
  1. use MySQL;   
  2. update user set host='%' where user='root'; 

3.

 
 
  1. MySQL -u root MySQL   
  2. MySQL> UPDATE user SET Password = PASSWORD('newpwd')   
  3. -> WHERE User = 'root';   
  4. MySQL> FLUSH PRIVILEGES;  

This statement is required to take effect in common MySQL statements.

4. Create an index:

 
 
  1. MySQL> alter table name add index (field );
  2. MySQL> alter table name add primary key (field );
  3. MySQL> show columns from table name;

Except index:

 
 
  1. MySQL> alter table Name drop index field;
  2. MySQL> alter table Name drop primary key field;
  3. MySQL> show columns from table name;

5. Backup

 
 
  1. MySQL\bin>MySQLdump -u root -proot orapp > back.sql 

The above content is an introduction to common MySQL statements.

The above content describes common MySQL statements, hoping to help you in this regard.

Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.