SQL> DECLARE
  2  VAR1 VARCHAR2(20);
  3  BEGIN
  4  VAR1:= 'Hello Oracle';
  5  DBMS_output.put
  6
  7
  8  /
DECLARE
*
ERROR at line 1:
ORA-06550: line 7, column 0:
PLS-00103: Encountered the symbol "end-of-file" when expecting one of the
following:
:= . ( @ % ;


SQL> declare
  2  var1 varchar2(20);
  3  begin
  4  var1:= 'Hello Oracle';
  5  DBMS_output.put_line(var1);
  6  exception
  7  when others them
  8  /
when others them
            *
ERROR at line 7:
ORA-06550: line 7, column 13:
PLS-00103: Encountered the symbol "THEM" when expecting one of the following:
then or


SQL> declare
  2  var1 varchar2(20);
  3  begin
  4  var1:= 'Hello Oracle';
  5  DBMS_output.put_line(var1);
  6  exception
  7  when others then
  8  DBMS_output.put_line('Hell no');
  9  end;
 10  /
Hello Oracle

PL/SQL procedure successfully completed.

SQL>