IndiaBIX

Database - ER Model and Business Rules - Discussion

Discussion Forum : ER Model and Business Rules - General Questions (Q.No. 5)
ER Model and Business Rules
5.
A supertype/subtype hierarchy is which of the following?
Each subtype has only one attribute.
Each supertype has only one attribute.
Each subtype has only one supertype.
Each supertype has only one subtype.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.
Sunil said:   1 decade ago
Please tell me a difference between subtype and supertype.

I don't understand this concept.
Darshana said:   1 decade ago
Since supertype can be accessed by each subtype.
Post your comments here:

Your comments will be displayed after verification.

Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers