How can i run the procedure without passing the parameter.

Question

CREATE OR REPLACE PROCEDURE P1 ( (nvl(A,'dkjf') VARCHAR2)
IS
BEGIN
DBMS_OUTPUT.PUT_LINE(A||',');
END;
it is giving me error
i want to execute in this way exec p1;
it should automatically take dkjf as parameter;
help required on this.

Answer 1

May be, if you are really looking for variety of solutions. I have one which i would say is a low level one
SQL> create or replace package pk1 is
  2  a number;
  3  procedure p1;
  4  end;
  5  /
Package created.
SQL>
SQL>
SQL> create or replace package body pk1 is
  2  procedure p1 is
  3  begin
  4  dbms_output.put_line(a);
  5  end;
  6  end;
  7  /
Package body created.
SQL> exec pk1.a := 10;
PL/SQL procedure successfully completed.
SQL> exec pk1.p1;
10
PL/SQL procedure successfully completed.Here you execute procedure without any parameter, and getting desired output.