How to approach the database design question

No one will tell you when find virtual entities 15

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Unformatted text preview: in the case material. You just need to know that an intersect table must be created whenever there is a many-to-many relationship. “No one” will tell you when. Find Virtual Entities 15. Finally, a table may be created even though there might NOT be a “physical” entity that it represents. For example, has anyone actually seen a “Shipment”? If so what does it look like? Make no mistake - what we DO see, feel, and touch are the products, shipping lists, and invoices that represent a shipment. I personally have never seen a shipment. Identify Primary Keys 16. Once you have done th...
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This note was uploaded on 01/26/2014 for the course COMM 335 taught by Professor Y.m.cheung during the Fall '12 term at The University of British Columbia.

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