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Section 3 Quiz (Answer all questions in this section) 1. As a database designer, you do not need to worry about where in the datamodel you store a particular attribute; as long as you get it onto the ERD, your job is done. True or False? Mark for Review (1) Points True False (*) Correct 2. If there is a column missing in an entity - normalization should identify this problem. Mark for Review (1) Points True (*) False Correct 3. Would it be a good idea to model age as an attribute of STUDENT? Mark for Review (1) Points No - it is a volatile attribute (*) Yes, it would prevent our having to calculate someone's age every time we need it. Yes Sometimes, but not all of the time Correct 4. A table is in 2NF if the table is in 1NF and what other condition is met? Mark for Review (1) Points There are no null values in primary key fields. There are no repeating groups. There are no functional dependencies.
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There are no attributes that are not functionally dependent on the relation's entire primary key. (*) Correct 5. Why is it important to follow the rules of normalization?
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  • Spring '17
  • azmat fatma

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