Entity's Help

Apr 13, 2007

what entity/tables will i need for a book e-commorce site?
so far i have Book,Customer,Purchases,order and stock if possible could you suggest what fields i should have within.

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Entity Relationship Diagrams

Nov 7, 2007

Somewhere on the Internet are some sample entity relationship diagrams for various database designs.

I've used every sort of Google search criteria I can think of, and haven't been able to find it.

Anyone got any idea of the site I'm talking about? Or any other resources even.

Thanking you in anticipation.

Cheers Tony

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Tables :: What Means A Table To Appear As Entity On Diagram

Nov 16, 2013

what means a table to appear as an entity on the diagram? And how to identify the cardinality of a relationship and how to specify which is mandatory and which is optional.

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