Position of CONSTANT in "IF" statement

Question

Hi,
I get an
ORA-06502: PL/SQL: numeric or value error: character string buffer too small
on the following statement:
IF MY_CONSTANTS = myVar THEN
which goes away when i change the order of the vars getting compared.:
IFmyVar = MY_CONSTANTS THEN
I am busy porting some jave code to PL/SQL and the usual way of avoiding NullPointerException:
if (MY_CONSTANTS.equals(myVar)) {}
Has to change order.
I cannot see any rule about this anywhere.
Is there something else i'm missing here?
Thanks
Buks

Answer 1

I can not create your error.
declare
const_int constant number(4)  := 4444;
const_str constant varchar2(4) :='test';
test_null_int  number(1) := null;
test_null_str  varchar2(1) := null;
begin
     if const_int = 22222 then
       null;
     end if;
     if const_int = test_null_int then
       null;
     end if;
     if const_int = 44 then
       null;
     end if;
     if const_str = '22222' then
       null;
     end if;
     if const_str = test_null_str then
       null;
     end if;
     if const_str = '44' then
       null;
     end if;
end;People have asked you for a larger sample of the code and the actual datatypes involved. Is there a reason you have not supplied them?
Bob.