SHOW PARAMETER UNDO
CREATE UNDO TABLESPACE UNDOTBS2 DATAFILE '&undofile/undotbs201.dbf' SIZE 50M AUTOEXTEND ON NEXT 5M;
ALTER SYSTEM SET UNDO_TABLESPACE=UNDOTBS2 SCOPE=BOTH;
DROP TABLESPACE APPS_UNDOTS1 INCLUDING CONTENTS AND DATAFILES;
CREATE UNDO TABLESPACE APPS_UNDOTS1 DATAFILE '&undofile/undo01.dbf' SIZE 50M AUTOEXTEND ON NEXT 5M;
ALTER SYSTEM SET UNDO_TABLESPACE=APPS_UNDOTS1 SCOPE=BOTH;
DROP TABLESPACE UNDOTBS2 INCLUDING CONTENTS AND DATAFILES;
SHOW PARAMETER UNDO