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MySQL: How to clone a database

Arne Hartherz
September 14, 2011Software engineer at makandra GmbH

Here is a way to create a duplicate of one database, with all its tables and their data, under a new name.

  1. Make a dump of your source database:

    mysqldump -uroot -p my_project -r my_project.sql
    

    Or, if you only want to dump the database's table structure (schema) without any contents:

    mysqldump -uroot -p my_project -r my_project.sql --no-data
    
  2. Open up a MySQL shell:

    mysql -uroot -p
    
  3. From the MySQL shell, create a new database and populate it with the dumped data:

    CREATE DATABASE my_project_copy;
    USE my_project_copy;
    SOURCE my_project.sql;
    
  4. Create a user and give it permissions to the new database:

    CREATE USER new_user IDENTIFIED BY 'some_password';
    GRANT ALL ON my_project_copy.* TO 'new_user'@'localhost' IDENTIFIED BY 'some_password';
    FLUSH PRIVILEGES;
    
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Posted by Arne Hartherz to makandra dev (2011-09-14 15:30)