While importing the database in 12.1.0.2..
ORA-39346: data loss in character set conversion for object DATABASE_EXPORT/SCHEMA/VIEW/VIEW
Processing object type DATABASE_EXPORT/SCHEMA/VIEW/GRANT/OWNER_GRANT/OBJECT_GRANT
Processing object type DATABASE_EXPORT/SCHEMA/VIEW/COMMENT
Processing object type DATABASE_EXPORT/SCHEMA/PACKAGE_BODIES/PACKAGE/PACKAGE_BODY
ORA-39346: data loss in character set conversion for object DATABASE_EXPORT/SCHEMA/PACKAGE_BODIES/PACKAGE/PACKAGE_BODY
Processing object type DATABASE_EXPORT/SCHEMA/TYPE/TYPE_BODY
ORA-39346: data loss in character set conversion for object DATABASE_EXPORT/SCHEMA/PACKAGE_BODIES/PACKAGE/PACKAGE_BODY
Cause:-
Invalid or corrupt characters are stored in the source database, usually in comments on objects
Solution:-
Apply interim patch 21342624 and run post-install step:
run
datapatch -verbose.
