SQL & PL/SQL

Function not returning new date:

set SERVEROUTPUT ON
declare

v_date CONSTANT DATE := sysdate;

begin

  IF v_date = TRUNC(SYSDATE+30) THEN
    dbms_output.put_line('30 days');
  ELSE
    dbms_output.put_line('other');
  END IF;

END;

returns:

other

DB version 11.2.0.2.0

Any idea why?

Thanks!