Chapter 4 The Relational Model

State True/False

1.False
2.True
3.True
4.True
5.False
6.True
7.True
8.True
9.False
10.False
11.False
12.False
13.True
14.True
15.True
16.True
17.True
18.True
19.True
20.True.

 

Tick (✓) the Appropriate Answer

1.(c)
2.(c)
3.(a)
4.(c)
5.(a)
6.(c)
7.(d)
8.(a)
9.(a)
10.(d)
11.(a)
12.(d)
13.(c)
14.(c)
15.(b)
16.(d)
17.(d)
18.(c)
19.(a)
20.(d)
21.(b).

 

Fill in the Blanks

1.Relation and the set theory
2.Dr. E.F. Codd
3.A Relational Model of Data for Large Shared Data Banks
4.System R
5.Tuple
6.Number of columns
7.Legal or atomic values
8.Field
9.Field
10.Degree
11.Cardinality
12.Primary key
13.Relation
14.Dr. Codd, 1972.

 

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