How many composite attributes are available in the following ER diagram?
2019
How many composite attributes are available in the following ER diagram?
- A.
2
- B.
8
- C.
6
- D.
5
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Show answer & explanation
Correct answer: A
A composite attribute is one that can be further divided into sub-attributes. In the given ER diagram: Name → First_name, Last_name
Address → City, Street, House_no
Hence, there are 2 composite attributes: Name and Address.