This topic describes how to export data from MemSQL databases using
mysqldump, which you can use because MemSQL supports the same
query-level inputs and outputs as MySQL. mysqldump creates a .sql file
containing the queries necessary to recreate a database. You can run the
output of mysqldump against an instance of MemSQL or MySQL, so you can
use this strategy to move data between the two.
Find the mysqldump reference page here.
Backing up a Single Database
$ mysqldump -h 127.0.0.1 -u root -P 3306 foo > foo.sql
If you have a database named “foo”, you can create a backup with the following command:
Backing up All Databases
If you want to back up every database in an instance of MemSQL, use the following command:
$ mysqldump -h 127.0.0.1 -u root -P 3306 --all-databases > full_backup.sql
Mysqldump uses LOCK TABLES to help ensure that it reads a consistent view of the database as it queries across tables.
This means you cannot run write queries against the database while the backup is being performed.
