how do i assign my substring is empty

[coco86]

let's say 334536999902920193
123 445465781
Id = left(d,3)
location = mid(d,4,9)

as you can see that my substring is empty..... what's the proper code for it? If you can help me .... please

[QVeen72]

Hi,

ur code looks alright here...
Where is ur SubString..??

Regards
Veena

[coco86]

it's actully look like this , but i dint realise it ...anyway ive already got it using trim()

334536999902920193
???????123 445465781

???? is my sub string but it's empty....
thanks veena