Oracle DBA's Artifact: PRM recovery Tool, which runs from Oracle software and reads data directly from Oracle data files
PRM is all called Parnassusdata Recovery Manager, by the Tan software independent research and development, with independent software copyright. The PRM can be run independently of the Oracle software, extracting data from the table directly from the Oracle data file.
The PRM can be used in the following scenarios:
- Data tables are accidentally truncate or dropped when no backup or backup is unavailable
- Data cannot be opened due to database corruption
- The data block is corrupted and Oracle cannot read it out
- Data file is corrupted, or data file header information is inconsistent, etc.
Above these issues, users can consider using the PRM Recovery tool to save data,  PRM software written in the Java language, almost across all operating system platforms, and the whole GUI graphical interface, without the user learning any new commands, Even beginners can easily learn how to use the PRM! Although the Oracle company also provides database recovery services, as this service is a premium service, if you need the original service, it means that you need to purchase the original PS and ACS services and other service packs. And the use of PRM services, only need to buy PRM software, or buy the special database restoration service of the Tan software can be, at a much lower cost.  PRM 3.0 Version:  HTTP://PARNASSUSDATA.COM/SITES/DEFAULT/FILES/PARNASSUSDATA_PRMFORORACLE_3002.ZIP PRM Official website: http://www.parnassusdata.com The PRM software has provided more than 100TB of database recovery service for nearly hundred enterprise level users worldwide, and tan software cherishes your Oracle data.