DBA_APPLY_INSTANTIATED_GLOBAL displays information about databases for which an instantiation SCN has been set.

Column Datatype NULL Description
SOURCE_DATABASE VARCHAR2(128) NOT NULL Name of the database that was instantiated
INSTANTIATION_SCN NUMBER   Instantiation SCN for the database. Only changes committed after this SCN are applied by an apply process.
APPLY_DATABASE_LINK VARCHAR2(128)   Database link to which changes are applied. If null, then changes are applied to the local database.