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COMP2420/COMP6420 - 2020 Sample - Q2 Database Theory

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a) Database Theory [8 Marks]

1) What is the difference between Structured and Unstructured data? Provide two examples of each type of data.[3 marks] CourseNana.COM

2) What are the typical tiers in the 3 tier architecture model? Briefly describe the role of each tier.[2 marks] CourseNana.COM

3) Is SQL a Data Definition Language (DDL), a Data Manipulation Language (DML), or both? Explain your answer. CourseNana.COM

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