Which of the attributes in the following table is a problem because it is a homo

Question

Which of the attributes in the following table is a problem because it is a homonym?
Select one:
a. person_id
b. person_name
c. person_date
d. person_age
e. person_height
Question 13
Which of the attributes in the following table is a problem because it is derived data?
Select one:
a. person_id
b. person_name
c. person_birthdate
d. person_age
e. person_height

How do you implement a many-to-many relation?

Select one:
a. using an associative entity
b. with the relations exactly as diagrammed
c. you have to go back and revise the business rules

Explanation / Answer

2.Ans-: d.)person_age is a problem because it can be derive from person_birthdate hence it is a derived data.

3.Ans-: We can implement a many-to-many relation using an associative entity as An associative entity is a term used in relational and entity-relationship theory and a relational database requires the implementation of a base relation (or base table) to resolve many-to-many relationships.

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