Get tips for Common commands in MySQL command lines

This article describes how to obtain small tricks for Common commands in MySQL command lines, it will be of great help in future studies or work. The following describes the main content of the article.

MySQL command line common command First, MySQL service start and stop

Net stop MySQL

Net start MySQL

MySQL command line Common commands second trick, login MySQL

Syntax: MySQL-u user name-p User Password

Enter the MySQL-uroot-p command, press enter and prompt you to enter the password, enter 12345, and then press enter to enter MySQL. The MySQL prompt is:

MySQL>

Note: If you are connecting to another machine, you need to add a parameter-h Machine IP address.

MySQL command line Common commands third recruit, add new users

Format: grant permission on database. * to username @ login host identified by "password"

For example, you can add a user user1 with the password password1 so that the user can log on to the machine and have the permission to query, insert, modify, and delete all databases. First, use the root user to connect to MySQL, and then type the following command:

Grant select, insert, update, delete on *. * to user1 @ localhost Identified by "password1 ";

If you want the user to log on to MySQL on any machine, change localhost to "% ".

If you do not want user1 to have a password, you can run another command to remove the password.

Grant select, insert, update, delete on mydb. * to user1 @ localhost identified "";

MySQL command line Common commands: Database Operations

Log on to MySQL and run the following commands at the MySQL prompt. Each Command ends with a semicolon.

1. display the Database List.

Show databases;

By default, two databases are available: MySQL and test. MySQL inventory contains the MySQL system and user permission information. We change the password and add users, in fact, this database is actually operated.

2. display the data tables in the database:

Use MySQL;

Show tables;

3. display the data table structure:

Describe table name;

4. Create and delete databases:

Create database name;

Drop database name;

5. Create a table:

Use Database Name;

Create table Name (Field List );

Drop table name;

6. Clear the table records:

Delete from table name;

7. display the records in the table:

Select * from table name;

MySQL command line Common commands: Step 5: export and import data

1. Export data:

MySQLdump -- opt test> MySQL. test

Export the database test database to the MySQL. test file, which is a text file

For example, MySQLdump-u root-p123456 -- databases dbname> MySQL. dbname

Export the database dbname to the MySQL. dbname file.

2. import data:

MySQLimport-u root-p123456 <MySQL. dbname.

No need to explain it.

3. Import text data to the database:

Field data of text data is separated by the tab key.

Use test;

Load data local infile "file name" into table name;

MySQL command line Common commands 6: Execute external script files

MySQL-u test-p1234 -- database BugFree <D:/GreenAMP/BugFree. SQL