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Bug 27693713 - PDB PITR Does Not Apply Incrementals When Local Undo Is Enabled DB PITR does not apply incremental backup when PDB is configured with local undo  (select * from database_properties where property_name = 'LOCAL_UNDO_ENABLED' and PROPERTY_VALUE = 'TRUE'); When restore pluggable database noredo is executed, it is supposed to apply incremental backups. Instead, media recovery is being performed when PDB local undo is enabled. this can take a long time. Bug info 27693713

In Oracle 12.2 a lot of new features are introduced for Multitenant 12.2 environments One of the possibility is to clone a pluggable databases while they are open for read/write operations. When we want to do this in a MAA environment this will introduce some problems Data Guard Impact on Oracle Multitenant Environments (Doc ID 2049127.1) For this Oracle has some new parameters which can be used to overcome these problems the parameter  " standby_pdb_source_file_dblink "