ERD PRACTICE PROBLEMS

ERD PRACTICE PROBLEMS - ERD PRACTICE PROBLEMS 1 A hospital...

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ERD PRACTICE PROBLEMS 1. A hospital has a large number of registered physicians. Attributes of PHYSICIAN include Phusician_ID (the identifier) and Specialty. Patients are admitted to the hospital by physicians. Attributes of PATIENT include Patient_ID (the identifier) and Patient_Name. Any patient who is admitted must have exactly one admitting physician. A physician may optionally admit any number of patients. Once admitted, a given patient must be treated by at least one physician. A particular physician may treat any number of patients, or may not treat any patients. Whenever a patient is treated by a physician, the hospital wishes to record the details of the treatment (Treatment_Detail). Components of Treatment_Detail include Date, Time and Results. 2. The entity type STUDENT has the following attributes: Student_ID, Student_Name, Address, Phone, Age, Activity and No_of_Years_participating. ACTIVITY represents some campus-based student activity which has the following attributes:
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