A three table database design for the data in the spreadsheet in Figure 5-15 is as follows:
ChoirMember (LastName, FirstName, Email, Phone, Part) MusicalWork (NameOfWork, Composer)
CheckOut (LastName, FirstName, NameofWork, Part, CopyNumber, DateIn, DateOut)
a. Redraw the data in Figure 5-15 into this three-table format.
b. Identify which columns are primary keys for each of these tables.
ChoirMember (LastName, FirstName, Email, Phone, Part)
MusicalWork (NameofWork, Composer)
CheckOut (LastName, FirstName, NameofWork, Part, CopyNumber, DateOut, DateIn)
c. The foreign keys are already in place; identify which columns are foreign keys and which relationships they represent.
d. Does this design eliminate the potential for data integrity problems that occur in the spreadsheet? Why or why not.