SQL> declare
  2    i number;
  3  begin
  4    i := 1 / 0;
  5  exception
  6    when others      then dbms_output.put_line('Others');
  7    when zero_divide then dbms_output.put_line('Divide by zero');
  8  end;
  9  /
  when others      then dbms_output.put_line('Others');
  *
ERROR at line 6:
ORA-06550: line 6, column 3:
PLS-00370: OTHERS handler must be last among the exception handlers of a block
ORA-06550: line 0, column 0:
PL/SQL: Compilation unit analysis terminated


SQL>

SQL> declare
  2    i number;
  3  begin
  4    i := 1 / 0;
  5  exception
  6    when zero_divide then dbms_output.put_line('Divide by zero');
  7    when others      then dbms_output.put_line('Others');
  8  end;
  9  /
Divide by zero

PL/SQL procedure successfully completed.

SQL>