Database notation isnot consistent; there are hundreds of types of database models.Each model or notation is good at selective situations. Visio uses notation and graphical shapes that are not the same asthose in your text. If you look at some of the links to schemas,you will see a similar sort of thing. Research the web for datamodels and data notation and similar phrases. Provide your answerto the following questions:
Name some of the notations/models you find
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