The Network Model
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Record-based Logical Models
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The Relational Model
The Network Model
Data are represented by collections of records.
Relationships among data are represented by links.
Organization is that of an
arbitrary graph
.
Figure
1.4
shows a sample network database that is the equivalent of the relational database of Figure
1.3
.
Figure 1.4:
A sample network database
Page created and maintained by
Osmar R. Zaï ane
Last Update: Sun Sep 10 16:58:49 PDT 1995