The method of exporting and importing MySQL database

Method one SQL script form

Action steps are as follows:
2.1. Export SQL Script
On the original database server, you can export the SQL script using the phpMyAdmin tool, or the mysqldump command line (mysqldump command in the mysql/bin/directory).
2.1.1 with phpMyAdmin Tools
Export options, select export structure and data, and do not add drop DATABASE and drop TABLE options.
Select the Save As File option to select the gzipped option if the data is more numerous.
Save the exported SQL file.

2.1.2 with mysqldump command line

Command format

Mysqldump-u user name-p database name > database name. sql

Example:

MYSQLDUMP-UROOT-P ABC > Abc.sql
(Export database ABC to abc.sql file)

When prompted for a password, enter the password for the database user name.

2.2. Create an empty database

Create a database from the Master interface/Control Panel. Suppose the database is named ABC and the database is Abc_f.

2.3. Import SQL script into execution

There are also two methods, one using the phpMyAdmin (MySQL database management) tool, or the MySQL command line.

MySQL Database export
Perform the following command export.

1./usr/local/mysql/bin/mysqldump-u root-p123456 Zhumaohai | gzip >/home/backup/zhumaohai.sql.gz

If all data is exported, the statement is:

1./usr/local/mysql/bin/mysqldump-u root-p123456--all-databases | gzip >/home/backup/all.sql.gz

Where: root is the database user name
123456 is the corresponding root database password
Zhumaohai is the name of the database that needs to be exported.

/home/backup/zhumaohai.sql is the path to the database file SQL export.

MySQL Database import
Perform the following command import.

1.gunzip

Import all databases:

1.gunzip

2.3.1 with phpMyAdmin Tools

From the Control Panel, choose to create an empty database, click "Manage", and go to the admin tools page.
On the SQL menu, browse to select the SQL file you just exported and click "Execute" to download and execute.

Note: phpMyAdmin has limits on the size of uploaded files, and PHP itself has limits on the size of uploaded files, if the original SQL file
Relatively large, you can first use gzip to compress it, for SQL files such as text files, you can get 1:5 or higher compression rate.
Gzip Use method:
# gzip Xxxxx.sql
Get
xxxxx.sql.gz files.

2.3.2 with mysql command line
Command format
Mysql-u user name-p database name < database name. sql
Example:
MYSQL-UABC_F-P ABC < Abc.sql
(Import database ABC from Abc.sql file)

When prompted for a password, enter the password for the database user name.
Method 2 into the MySQL, set up a database, select the database, into the following code, D:112121.SQL for the database directory.
Mysql>source D:112121.sql

3 Method Two direct copies
If the database is large, you can consider using a direct copy method, but the different versions and operating systems may be incompatible between the use of caution.
3.1 Preparation of original documents
Packaged in tar as a file

3.2 Creating an empty database

3.3 Decompression
Unzip in the temp directory, such as:
Cd/tmp
Tar zxf mydb.tar.gz

3.4 copies
Copy the extracted database files to the related directory
CD mydb/
CP */var/lib/mysql/mydb/

For FreeBSD:
CP */var/db/mysql/mydb/

3.5 Permission settings
Change the owner of the document copying the past to Mysql:mysql, with the permission changed to 660
Chown mysql:mysql/var/lib/mysql/mydb/*
chmod 660/var/lib/mysql/mydb/*