Question
Draw E-R diagram: 1. An EMPLOYEE may be a supervisor of other EMPLOYEES, but some EMPLOYEES do not supervise anyone. (recursive relationship) 2. A specific
Draw E-R diagram:
1. An EMPLOYEE may be a supervisor of other EMPLOYEES, but some EMPLOYEES do not supervise anyone. (recursive relationship)
2. A specific DRUG is prescribed for a specific PATIENT by a specific PHYSICIAN. A PHYSICIAN may issue many different prescriptions for a given PATIENT. Likewise, a PATIENT may have several different DRUGs prescribed by different PHYSICIANS.
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Database And Expert Systems Applications 31st International Conference Dexa 2020 Bratislava Slovakia September 14 17 2020 Proceedings Part 1 Lncs 12391
Authors: Sven Hartmann ,Josef Kung ,Gabriele Kotsis ,A Min Tjoa ,Ismail Khalil
1st Edition
303059002X, 978-3030590024
