For many report evaluations, the order in which you want to process data may differ from the order in which it is stored. Since the results of read operations generally reflect the order in which data is stored, you must re-sort all of the data you selected into the desired order.
A typical result of
formatting data in the context of a flight reservation application is creating
a classical
list that is
designed to provide booking data for each flight number. The possible
connections are to be sorted by departure city, the flights by date, and the
customer data by class and smoker/non-smoker. For each flight, the total
number of passengers and the overall luggage weight need to be
displayed.
A section of the resulting list should look like this:
