RowNo() in table

[louise119]

Is it possible to display RowNo()  for only the specified items in the table?

ex)In table X, I want to assign row numbers only for Region, City and Sales data. I would like to ignore Customer data, is that possible?
----------------------------
Table X:
Region,
City,
Sales,
RowNo() as RowID,

Customer

resident City;

----------------------------

[rubenmarin]

Hi, I'm not sure to understand your question...maybe with Autonumber()?:

Autonumber(Region&'_'&City&'_'&Sales) as RowID

Using this, rows with the same region, city and sales will have the same ID.