I have the following use case:
1.- I´m development a simple shooping App and I need to create a new screen that will contains a consecutive number (ID TICKET). buuuuut......there is my problem because I need a Datacell that display the consecutive number on based on my last ticket. For example if my last ticket was "003" when the user-App click on "New Sale" the DataCell consult my table and obtain the last ticket ( 003) and sum 1 digit, so.. the result will be Ticket "004" and successively.
thanks for your support