Let's suppose a company has hired you as a DBA and that company asks you to work on a project. This project targets to prevent COVID-19 as it is the biggest pandemic for a number of reasons. It's a kind of virus, meaning no one has immunity. The company wants you to lead in a project as a DBA where you are required to manage the DB in design a "Corona-Watch". It can behave as a substitute to alert a person if he/she might have been exposed to the coronavirus. It uses private, local Bluetooth signals to help a person take action. Based on his/her anonymous logs it will provide a POTENTIAL RISK report: Monitor Symptoms Isolate from others Rest and take care • Get tested • Refer to medical agencies if advised Consider the given scenario to answer the following questions: a. How would you avoid data redundancy b. What are the Integrity Constraints?

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A: This error is cause due to forgein key constrain

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A:

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A: The above question is solved in step 2 :-

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A:

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A:

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A:

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