7. Establishing Table Structures
It is a capital mistake to theorize before one has data.
—SHERLOCK HOLMES, THE ADVENTURES OF SHERLOCK HOLMES
Topics Covered in This Chapter
Organizations use databases to keep track of various subjects that are important to them. For example, a medical clinic keeps track of, among other things, its patients, doctors, and appointments; an equipment rental business must maintain data on its customers, equipment, and rental agreements; and a registrar’s office is concerned (at the very least) with students, teaching staff, and courses. ...