Learn about how to recover historical data
- Last UpdatedAug 19, 2025
- 1 minute read
- PI System
- Interfaces
The RDBMS interface enables you to recover historical data from RDBMS tables to PI tags (input recovery) as well as to send PI tag data through output tags to tables in RDBMS (output recovery) starting at the specified time. When configured, the interface performs both types of recovery during startup.
In addition, you can run the interface in pure recovery mode, specifying the time period for which you want to recover the data; that is, specifying the start and end recovery times. In this mode, the interface reads the source for the specified period, updates the targets by executing the queries and then exits.