Results 1 to 2 of 2
  1. #1
    Join Date
    Oct 2011
    Posts
    7

    Red face relationship help.

    ok in simplest terms im having a problem developing a relationship between 4 entities. they are as follows:
    physician: PH_ID,PH_Name
    patient: P_ID,MRN,P_Name
    Order:O_ID,O_Date,O_Time
    Treatment:T_Code,T_Name

    now my problem is that it states that a physican MAY order AND perform any number of services/treatments for a patient or not perform any treatment. after this i assume that order is a associative entity between patient and physician since it really seems to have no distinguishing features besides its ID.it also goes on saying that a treatment or service may be performed on any number of patients, and a patient may have any number of treatments performed or ordered by any number of physicians. for all treatment and services rendered, the hospital wants to record the physician ordering the treatment, treatement date and time, and the results. i say it could possibly be a tenary but im not quite sure how to do it. any additional information needed can be asked for. please i am in desperae need of help.

  2. #2
    Join Date
    Oct 2011
    Posts
    7
    what im looking for is how to relate them to draw an entity relationship diagram

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •