/* The following is a list of sample queries that could be used after the system 
/* is implimented

SELECT patient.Patient_ID, patient.Fname, patient.Lname, invoice.Balance
	FROM Patient, Invoice
		WHERE invoice.Balance = '0'




SELECT patient.Patient_ID, patient.Fname, patient.Lname, Visit.Visit_ID
	FROM Patient, Invoice
		WHERE Patient.Patient_ID = Visit.Visit_ID
		



Select visit_ID FROM Visit
	WHERE TypeOfVisit = 'Scheduled'



These are simply examples of how to query... the first shows a way to find unpaid balances,
the second shows a way to get a patient's history inventory, third is a way to check if
the visit has an appointment, or was unscheduled.