>>PADR(NVL(i1,""),11) is wrong for .NULL. value
>>
>>See message#1407524
>>
>>Agnes
>>
>I'm not sure what do you mean here, it works OK for me.
>
>I just tested TRANSFORM function too, it also returns NULL when we pass NULL
>
>lcD = 'test'
>lcD = NULL
>?MESSAGEBOX(TRANSFORM(lcD))
>
>It is not mentioned in Help, but I think this behavior with NULLs is quite predictable.

TRANSFORM(NULL) return SET("Nulldisplay") string