chapter 4

Question 1

hierarchical model:

Answer 1

represents data as a hierarchical tree structure
instance: a record within a table

Question 2

network model:

Answer 2

represents data as record types

Question 3

relation:

Answer 3

another term for table

Question 4

Relation :

Answer 4

another term for table

Question 5

relational model:

Answer 5

represents data as relations or tables

Question 6

set type:

Answer 6

a limited type of one to many relationship