Doctor and patient relationship er diagram

doctor and patient relationship er diagram

Question 1. ER Diagram. Patient. Doctor. Drug. Pharmacy. Pharm_co ssn Delete the “price” attribute from the Sell relationship; and make “price” an attribute of. Sample ER Diagram for Patient/Doctor relationship. CREATE TABLE patient ( patient_id INT PRIMARY KEY AUTO_INCREMENT, last_name VARCHAR(50). Answer to Draw an entity-relationship diagram of a patient–doctor relationship. a. Which of the types of E-R diagrams is it?.

Each patient has an identifier, the medical record number MRNand a name.

doctor and patient relationship er diagram

Physician A member of the hospital medical staff who may admit patients to the hospital and who may administer medical treatments. Each physician has a physician ID and name. A patient's medical condition diagnosed by a physician.

ER Diagram doctor patient portal ( Entity Relationship Diagram)

Procedure codes are used for diagnostic and therapeutic procedures. Each order has an order ID, order date, and order time. In this manner, I was wondering if someone could look at this and derive the same ERD from the business rules I have or if I messed up the translation. My considerations The specific issue I can not seem to wrap my head around is the existence of multiple relationships between the entity types.

doctor and patient relationship er diagram

First of all, I do not even know what kind of cardinalities to put on regarding the relationship between Order and Treatment. Another issue for me is the multiple relationships between Patient, Diagnosis and Physician.

doctor and patient relationship er diagram

Also, the same issue with Physician, Patient, and Treament. Are these perhaps suppose to be ternary degree relationships, and or contain weak entity types to make this more understandable?

Add attributes to the relations; these are determined by the queries,and may also suggest new entities, e.

Sample ER Diagram for Patient/Doctor relationship

What questions can we ask? Which doctors work in which wards? How much will be spent in a ward in a given week? How much will a patient cost to treat?

ER Diagram doctor patient portal | Editable Entity Relationship Diagram Template on Creately

How much does a doctor cost per week? Which assistants can a patient expect to see? Which drugs are being used?

doctor and patient relationship er diagram

Add cardinality to the relations Many-to-Many must be resolved to two one-to-manys with an additional entity Usually automatically happens Sometimes involves introduction of a link entity which will be all foreign key Examples: This flexibility allows us to consider a variety of questions such as: Which beds are free? Which assistants work for Dr.

doctor and patient relationship er diagram

What is the least expensive prescription? How many doctors are there in the hospital?

Sample ER Diagram for Patient/Doctor relationship

Which patients are family related? Represent that information with symbols. Generally E-R Diagrams require the use of the following symbols: These allow us to represent the information from above such as the E-R Diagram below: