Problem in date compare

Question

Hi All,
I have two oracle servers both are 9i. In one machine the date comparison is working file in another its not. I have come up with a sample pl/sql block which is
DECLARE
STARTDATE DATE;
BEGIN
STARTDATE := TO_DATE('08/09/2010','mm/dd/yyyy'); -- enter the today date manually
DBMS_OUTPUT.PUT_LINE('STARTDATE = ' || STARTDATE);
DBMS_OUTPUT.PUT_LINE('sysdate = ' || sysdate);
if( sysdate = startdate) then
DBMS_OUTPUT.PUT_LINE('days are equal ');
else
DBMS_OUTPUT.PUT_LINE('days are not equal ');
end if;
END;
in one oracle 9i server it returns 'days are equal' but in another it returns 'days are not equal'.
I believe the output should be always 'days are equal'.
is there any db settings that i need to change to work in a proper way? Thanks in advance.

Answer 1

SQL> DECLARE
  2   STARTDATE DATE;
  3  BEGIN
  4    STARTDATE := TO_DATE('08/09/2010', 'mm/dd/yyyy'); -- enter the today date manually
  5    DBMS_OUTPUT.PUT_LINE('STARTDATE = ' || STARTDATE);
  6    DBMS_OUTPUT.PUT_LINE('sysdate = ' || sysdate);
  7    if (sysdate = startdate) then
  8      DBMS_OUTPUT.PUT_LINE('days are equal ');
  9    else
10      DBMS_OUTPUT.PUT_LINE('days are not equal ');
11    end if;
12  END;
13  /
STARTDATE = 09-AUG-10
sysdate = 09-AUG-10
days are not equal
PL/SQL procedure successfully completed.
SQL> ed
Wrote file afiedt.buf
  1  DECLARE
  2   STARTDATE DATE;
  3  BEGIN
  4    STARTDATE := TO_DATE('08/09/2010', 'mm/dd/yyyy'); -- enter the today date manually
  5    DBMS_OUTPUT.PUT_LINE('STARTDATE = ' || STARTDATE);
  6    DBMS_OUTPUT.PUT_LINE('sysdate = ' || sysdate);
  7    if (to_char(sysdate,'DD-MM-RRRR') = to_char(startdate,'DD-MM-RRRR')) then
  8      DBMS_OUTPUT.PUT_LINE('days are equal ');
  9    else
10      DBMS_OUTPUT.PUT_LINE('days are not equal ');
11    end if;
12* END;
SQL> /
STARTDATE = 09-AUG-10
sysdate = 09-AUG-10
days are equal
PL/SQL procedure successfully completed.