Undo table space growing up
SQL> show parameters undo_management;
NAME TYPE VALUE
undo_management string AUTO
SQL> show parameters undo_tablespace;
NAME TYPE VALUE
undo_tablespace string APPS_UNDOTS1
SQL> show parameters undo_retention;
NAME TYPE VALUE
undo_retention integer 1800
SQL> show parameters undo_suppress_errors
how can reduce my undo table space?