What is a data model? How can a poorly designed database result in unintentional loss of critical records? What is a user view? Does a user view always require multiple tables to support it?...



What is a data model?



How can a poorly designed database result in unintentional loss of critical records?



What is a user view?



Does a user view always require multiple tables to support it? Explain.



What two conditions must valid entities meet?



Dec 03, 2021
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