SET SERVEROUT ON VERIFY OFF 
DECLARE
  TB NUMBER ;
  TBY NUMBER ;
  UB NUMBER;
  UBY NUMBER;
  LUEF NUMBER ;
  LUEBI NUMBER ;
  LUB NUMBER ;
BEGIN
  DBMS_SPACE.UNUSED_SPACE( UPPER('&1.'), UPPER('&2.'), UPPER('&3.'), TB, TBY, UB, UBY, LUEF, LUEBI, LUB );
  DBMS_OUTPUT.PUT_LINE( CHR(10) || UPPER('&2.') || CHR(10) || CHR(10) || 'TOTAL BLOCKS = ' || to_char( TB, '9999999' ) );  
  DBMS_OUTPUT.PUT_LINE( 'EMPTY BLOCKS = ' || to_char( UB, '9999999' ) );
  DBMS_OUTPUT.PUT_LINE( 'USED BLOCKS  = ' || to_char( TB-UB, '9999999' ) );
END;
/
SET SERVEROUT OFF VERIFY ON