The steps in this post can used to resolve problems if a physical standby database has lost or corrupted archived redo data or has an unresolvable archive gap. 1. Make sure you stop the managed recovery process (MRP) before going ahead with further steps. SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL; 2. On the STANDBY DATABASE, find the SCN which will be used for the incremental backup at the primary database. You need to use the 'lowest SCN' from the the 3 queries below … [Read more...] about How to Roll Forward a standby database using RMAN incremental backup in 11g