Here is a sample data organization for part of a university database.
Each word that is in all capitals represents a database record type.
You may find it easier to think of each as a separate table or
file. Within each record type, the other words represent attributes
(descriptive information) stored with each record. Thus, a DEPARTMENT
record contains the DeptName, Office, Phone, Url, NumStudents, and
StudentIDs (for the students in the department). You can picture the
DEPARTMENT record as a table with one column for DeptName, one
column for Office, and so on.

This is *not* a good organization. You should try to think of what
kinds of problems we might run into when using such an organization.

STUDENT        DEPARTMENT        CLASS         FINANCIAL_AID
-------        ----------        -----         -------------
StudentID      DeptName          Program       StudentID
SocSecNum      Office            CourseNum     LastName
LastName       Phone             Title         FirstName
FirstName      Url               Year          MiddleInitial
MiddleName     NumStudents       Quarter       Address
Freshman       StudentIDs        Instructor    Balance
Sophomore                        Room
Junior
Senior
Graduate
Male
Female
Major
DeptChair

BUILDING
--------
Name