MySQL restore - How to restore a MySQL database from a backup

MySQL database FAQ: How do I restore a MySQL backup? (Also written as, "How do I restore a MySQL database dump?")

Assuming that you've created a MySQL backup file as shown in my "MySQL backup - How to Backup a MySQL database" tutorial, you can use the commands shown here to restore your MySQL database. As mentioned in that article, I strongly recommend that you test your MySQL backup file by trying to restore it to another MySQL database server to make sure there are no problems with the file, and the commands shown here can be used for that test as well.

The MySQL restore process

The process to restore a MySQL database from a backup file created by mysqldump is a simple two-step process:

  1. Create a new MySQL database using the mysqladmin utility.
  2. Restore your database backup to this new database using one of several possible commands.

MySQL restore - Create your new database

Assuming you have the root password for your MySQL database server, you can easily create a new database with the mysqladmin command, like this:

mysqladmin -u root -p create mytestdatabase

After you are prompted for the root password, and successfully enter it, the mysqladmin utility will create a new database named mytestdatabase for you. That's all you have to do to create it.

Restore a MySQL database from the backup file

Next, you can easily restore your old database from your backup file. Here's a command I just used to test the process of restoring a Drupal database backup file I just created with mysqldump:

mysql -u root -p mytestdatabase < drupaldb-20090505.sql

Warning: Be very careful with this command! In particular, you want to make sure that the database you are restoring to ("mytestdatabase", in my case) is empty before you run this command.

In this case I am using a MySQL backup file named drupaldb-20090505.sql to restore the contents of that database to my new database, which I named mytestdatabase. Again, this is very simple, and that's all you have to do.

As mentioned, you can restore your database backup file using several different possible commands, but I think this command is the easiest, and I'll leave it at that for today.

u can use mysqldump

u can also use mysqldump to restore and take backup of mysql database.

1> take backup
mysqldump -uUserName -p --all-databases > FileName.sql

2> Restore
mysqldump -uUserName -p --all-databases < FileName.sql

from command promt the above should work fine

Regards,
-Nanu

I've never seen mysqldump

I've never seen mysqldump used to restore a database before. I'll try it this weekend.

FWIW, here's a link to