CTP can help you backup and re-create/port the CTP database. From a backup file, you can re-create the exact same database in a new location, or you can port it to an alternative database type (MySQL, HyperSQL, Oracle). For example, you could back up a HyperSQL database, then re-create it as an Oracle or MySQL database. Or, you could capture the current state of a database and use that for a rollback.
In the Create Database dialog, indicate the desired database type and the connection settings for the new database.
To create a new database of the same database type, indicate a new database location (e.g., schema, SID, service name, or path). To prevent overwriting, you cannot specify an existing database location. You do not need to remove the existing EM databases; just create the new database in a different location:
To port a database to a different database type, select the target database type, then specify the desired location for the new database.
To create a new database account from this interface, enter the desired username and password, check Create a new user, then confirm the password. For new accounts on Oracle, you can also specify a data tablespace and temp tablespace—or you can leave those fields empty to use the defaults (<USER>_DATA> and <USER_TEMP>).
A new database will be created in the specified location, then it will be populated with the data saved in the backup file. After a new database is successfully created, CTP will ask you if you want it to delete the previous database (the database whose connection settings are shown in the main page behind the dialog).