You can sort the information stored in a table based on the values in one or more fields, in either ascending or descending order. For example, you could sort customer information alphabetically by last name and then by first name. This would result in the order found in telephone books, as shown here:
Sorting a table groups all entries of one type together, which can be useful. For example, to qualify for a discount on postage, you might want to group customer records by postal code before printing mailing labels.