RE: %addr <> *null vs %parms >= ?

Hello,

> If caller is not passing the optional parameter, shouldn't the optional
> parameter be *null in the called procedure?

No. If no parameter is passed, it can't be anything -- it's not there.

When you pass *OMIT as a value to a procedure, the system passes a null
parameter -- but it still passes something.  When you use options(*NOPASS)
and choose not to pass a parameter, there's no value to check!  Nothing
was passed.

Your question is like asking "If I don't buy anything at the store, won't
this shopping bag be empty?" You can't look in the bag to see if
it's empty or full, because you didn't go shopping, and they didn't give
you a bag.