Design a database schema for the proposed Database Design Proposal on (the Prevention of the loss of healthcare data).

1) Identify and list all relevant entities and their relationships:

2) Provide a diagram.

3) Map this to a database schema.

4) Provide a data dictionary for all entity attributes.

For this assignment, use the following database schema:

1) Patient-PatientID, Name, DOB

2) Doctor-DoctorID, Name, MedLicenseNumber, Phone

3) Medication-MedicationID, BrandName, GenericName

4) Prescription-PrescriptionID, Date, PatientID, PrescriberID, MedicationID

Specify the SQL queries to retrieve:

1) A list of all doctors.

2) The number of patients that were born before 01/01/1994.

3) The patient information along with the ID of any prescribing doctor for each patient.

4) The prescription information along with patient name, DOB, medication brand name, and prescribing doctor name sorted by most recent date.

5) The most prescribed generic medication name.

Focus on one or two areas of your design that seemed especially difficult to develop and provide a brief assessment of the difficulty you encountered in modeling or mapping to the schema. In addition, provide the rationale for the design chosen, its limitations, and its possible extensions.

Tip: If you do not have access to ER modeling software or a diagramming tool like Visio or OmniGraffle, you can simply create diagrams in a presentation tool like PowerPoint. This is an essential skill which is used in the field.