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Database Systems: Concepts, Design and Applications by S. K. Singh

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Chapter 6 Entity-Relationship (ER) Model

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Tick (✓) the Appropriate Answer

1.(c)
2.(b)
3.(a)
4.(d)
5.(d)
6.(a)
7.(b)
8.(d)
9.(b)
10.(a)
11.(a).

 

Fill in the Blanks

1.P.P Chen
2.Object, thing
3.Association, entities
4.Connectivity
5.(a) entities, (b) Attributes, (c) relationships
6.Lines
7.Ternary relationship
8.Recursive relationship
9.Binary relationship
10.Cardinality
11.Entity, relationship
12.Attribute or data items
13.Entity set
14.(a) entity sets, (b) relationship sets, (c) attributes, (d) mapping cardinalities
15.Data (b) data organisation
16.Strong entity type
17.Simple ...

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