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Question

Week 5: Data Normalization and Validation (graded)

 

• How do you recognize the difference between good and bad structures? What role does normalization play in good and bad table structures, and why is normalization so important to a good table structure?

• What is the importance of data validation, and how can user data entry errors be reduced or eliminated?

 

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Solution Preview

1) A good structure is internally used by a host transact or a program whereas the bad tables generate the source as a background. The only difference is a table is permanently in hold of data while a structure only holds the running data

2) The bad structures work under a principle of duplicate, and this leads to the space wastage and 

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