Open a command shell (Start > Run cmd, in Windows), and then type the following at the prompt replacing USERNAME and DATABASE. By default, the databases are owbusdb and owmetadb.
mysqldump -a -u USERNAME --password=[name] DATABASE > FILENAME.mysql
This writes the DATABASE to a plain-text file called FILENAME.mysql. This file is a full backup with which you can fully restore your database in case of problems.
Defaults for the database are oware (login) and dorado (password).