MySQL import. sql files and Common commands

To import *.sql scripts directly in MySQL Qurey Brower, is the command to execute SQL files in MySQL without executing multiple SQL commands at once:

Mysql> source D:/myprogram/database/db.sql;

Also attached to MySQL common commands:

A) connect to MySQL:

Format: mysql-h host address-u user name-P user Password

1. Example 1: Connect to MySQL on this machine

First open the DOS window, and then into the MySQL installation directory under the bin directory, for example: D:/mysql/bin, and then type the command mysql-uroot-p, enter after the prompt to lose the password, if just installed MySQL, superuser root is no password, So the direct return to enter the MySQL, MySQL, the prompt is:mysql>

2. Example 2: Connect to MySQL (remote: IP address) on the remote host

Assume that the remote host IP is: 10.0.0.1, the user name is root, the password is 123. Type the following command:

Mysql-h10.0.0.1-uroot-p123

(Note: You and root can be used without spaces, others are the same)

3. Quit MySQL Command

Exit (Enter)

(b) Change the password:

Format: Mysqladmin-u username-P Old password password new password

1, Example 1: Add a password to root 123. First enter directory C:/mysql/bin under DOS, and then type the following command:

Mysqladmin-uroot-password 123

Note: Because Root does not have a password at the beginning, the-p old password can be omitted.

2, Example 2: Then change the root password to 456

MYSQLADMIN-UROOT-PAB12 Password 456

(c) Add new users: (Note: Unlike the above, because it is a command in the MySQL environment, it is followed by a semicolon as a command terminator)

Format: Grant Select on database. * To User name @ login host identified by "password"

Example 1, add a user test1 password for ABC, so that he can log on any host, and all databases have query, insert, modify, delete permissions. First, use the root user to connect to MySQL, and then type the following command: Grant Select,insert,update,delete on *. * to test2@localhost identified by "ABC";

If you do not want to test2 have a password, you can call another command to erase the password. Grant Select,insert,update,delete on mydb.* to test2@localhost identified by "";

(iv) Display of commands

1. Display the database list:

show databases; Just started with two databases: MySQL and test. MySQL Library is very important it has the MySQL system information, we change the password and the new user, is actually using this library to operate.

2. Display the data table in the library:

use MySQL;//open library show tables;

3, display the structure of the data table:

describe table name;

4, build the library:

Create database name;

5, build the table:

Use library name; CREATE table table name (field settings list);

6. Deleting the library and deleting the table:

drop database name; drop table name;

7. Empty the records in the table:

Delete from table name;

8. Display the records in the table:

SELECT * from table name;

Export SQL Script

Mysqldump-u user name-p database name > storage location

Mysqldump-u root-p Test > C:/a.sql

Import SQL Script

Mysql-u user name-p database name < storage location

Mysqljump-u root-p Test < C:/a.sql

Note that the test database must already exist

MySQL export use case for import command

1. Export the entire database

Mysqldump-u user name-p database name > exported file name

Mysqldump-u wcnc-p SMGP_APPS_WCNC > Wcnc.sql

2. Export a table

Mysqldump-u user name-P database name Table name > exported file name

Mysqldump-u wcnc-p SMGP_APPS_WCNC users> wcnc_users.sql

3. Export a database structure

Mysqldump-u Wcnc-p-D--add-drop-table SMGP_APPS_WCNC >d:wcnc_db.sql

-D No data--add-drop-table add a drop table before each CREATE statement

4. Import the database

Common source Commands

Go to MySQL Database console,

such as Mysql-u root-p

Mysql>use Database

Then use the source command, followed by the script file (for example, the. SQL used here)

Mysql>source D:wcnc_db.sql

MySQL import. sql files and Common commands