Name three ways that null values in a database can be interpreted. Why is this problematic?
Answer to relevant QuestionsWhat are the two dimensions in which to optimize a relational database? What is an index, and how can it improve the performance of a system? Describe how you would denormalize the model that you created in question E. Draw the new physical model on the basis of your suggested changes. How would performance be affected by your suggestions? A consulting project involved a credit card “bottom feeder” (let’s call it Credit Wonder). This company bought credit card accounts that were written off as uncollectable debts by major banks. Credit Wonder would buy ...How are test cases developed for unit tests?
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