SQL> select banner from v$version;
BANNER
--------------------------------------------------------------------------------
Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production
PL/SQL Release 12.2.0.1.0 - Production
CORE 12.2.0.1.0 Production
TNS for Linux: Version 12.2.0.1.0 - Production
NLSRTL Version 12.2.0.1.0 - Production
SQL> col PROPERTY_NAME for a25;
SQL> col PROPERTY_VALUE for a25;
SQL> select PROPERTY_NAME,PROPERTY_VALUE from database_properties where property_name='LOCAL_UNDO_ENABLED';
PROPERTY_NAME PROPERTY_VALUE
------------------------- -------------------------
LOCAL_UNDO_ENABLED TRUE