Determine possible values to be considered for the age field in a student record at a university, Variation of default in the age field for school within university or degree sought as per student characteristic and some fundamental problem with this field.

Determine possible values to be considered for the age field in a student record at a university, Variation of default in the age field for school within university or degree sought as per student characteristic and some fundamental problem with this field.

A Guide to SQL

9th Edition

ISBN:9781111527273

Author:Philip J. Pratt

Publisher:Philip J. Pratt

Chapter2: Database Design Fundamentals

Section: Chapter Questions

Problem 17RQ: List the changes you would need to make to your answer for Question 11 if the requirements change so...

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Enhanced ER Model

The enhanced ER model is an abbreviation for Enhanced Entity-Relationship (EER) model. As you know, the entity-relationship (ER) model is a pictorial illustration of the relationship between various entities of a domain. In the case of a large amount of data with multiple interrelated entities, the ER diagrams become complex and tough to interpret. For such cases, the need for enhancement in the ER model was observed, and thus, the EER model was designed.

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