Problem with Raise keyword

Question

exception
when others then
dbms_output.put_line('xxxxxx');
dbms_output.put_line('xxxxx');
raise;
end;
What is the use of Raise here, pls help, what does it do uin the exception part???

Answer 1

Don't have the WHEN OTHERS exception here if we are not thinking of handling the exception.
Go through this link : http://tkyte.blogspot.com/2008/01/why-do-people-do-this.html
And also the below example :
SQL> declare
  2    n number;
  3  begin
  4    select level into n from dual
  5    connect by level <= 2;
  6  EXCEPTION
  7  WHEN OTHERS THEN
  8  dbms_output.put_line('Error : '|| dbms_utility.format_error_stack() || CHR(10) || dbms_utility.format_error_backtra
ce());
  9  end;
10  /
PL/SQL procedure successfully completed.
SQL> edi
Wrote file afiedt.buf
  1  declare
  2    n number;
  3  begin
  4    select level into n from dual
  5    connect by level <= 2;
  6* end;
SQL> /
declare
ERROR at line 1:
ORA-01422: exact fetch returns more than requested number of rows
ORA-06512: at line 4
SQL>