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Relational Database Models

Carl Bamford, Paul Curran

Open publisher page 6 citations

Abstract

It is true to say that nearly all the current development work on databases involves relational database systems. Relational databases use a simple logical model which is further removed from the physical implementation than was the case for the network models examined in the previous chapter. A network database requires the user to navigate around the sets, as was illustrated in figure 11.10 for a sample CODASYL model. Often, in a relational database, the user merely defines what is required and the relational database decides how to achieve it. Because of this feature, relational databases are said to provide ‘automatic navigation’.

About this research paper

What this paper is about

It is true to say that nearly all the current development work on databases involves relational database systems. Relational databases use a simple logical model which is further removed from the physical implementation than was the case for the network models examined in the previous chapter. A network database requires the user to navigate around the sets, as was illustrated in figure 11.10 for a sample CODASYL model. Often, in a relational database, the user merely defines what is required and the relational database decides how to achieve it. Because of this feature, relational databases are said to provide ‘automatic navigation’.

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OpenAlex reports 6 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

It is true to say that nearly all the current development work on databases involves relational database systems. Relational databases use a simple logical model which is further removed from the physical implementation than was the case for the network models examined in the previous chapter. A network database requires the user to navigate around the sets, as was illustrated in figure 11.10 for a sample CODASYL model. Often, in a relational database, the user merely defines what is required and the relational database decides how to achieve it. Because of this feature, relational databases are said to provide ‘automatic navigation’.

Key concepts: Relational database, Database model, Relational model, Database design, Computer science, Entity–relationship model, Database, Semi-structured model

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