In the present invention, a database structure is defined such that a
database table having a plurality of objects each having an associated
data is formed. A second table containing the relationship of one of the
objects to another of the objects in a parent-child relationship is
formed. A summary database table receives the data from the second
database table and summarizes the data therefrom. By separating the
relationship from the underlying data, and with the definition of each
parent and child, execution of retrieval of information from the database
structure is extremely efficient and fast.
