Database MCQ - ER-model & Relational Model

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51:  

 In E-R Diagram relationship type is represented by

A.	Ellipse
B.	Dashed ellipse
C.	Rectangle
D.	Diamond
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	Option: D Explanation : Click on Discuss to view users comments. Write your comments here: Updating your Comments.. Updating your Comments..

52:  

 Hierarchical model is also called

A.	Tree structure
B.	Plex Structure
C.	Normalize Structure
D.	Table Structure
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	Option: A Explanation : Click on Discuss to view users comments. Write your comments here: Updating your Comments.. Updating your Comments..

53:  

In E-R diagram generalization is represented by

A.	Ellipse
B.	Dashed ellipse
C.	Rectangle
D.	Triangle
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	Option: D Explanation : Click on Discuss to view users comments. Write your comments here: Updating your Comments.. Updating your Comments..

54:  

The method of access which uses key transformation is known as

A.	Direct
B.	Hash
C.	Random
D.	Sequential
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	Option: B Explanation : Click on Discuss to view users comments. Write your comments here: Updating your Comments.. Updating your Comments..

55:  

 A table joined with itself is called

A.	Join
B.	Self Join
C.	Outer Join
D.	Equi Join
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	Option: B Explanation : Click on Discuss to view users comments. Write your comments here: Updating your Comments.. Updating your Comments..

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