Abstract
The various aspects of database systems are formalized. An information base is described as a projection of a part of the real world which follows certain semantical constraints. The concepts of the external and internal model of a database are integrated in this theory. Furthermore, interactions (add, modify, delete and retrieve) on databases are defined exactly with the help of this generalized conception.
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© 1978 The World Organisation of General Systems and Cybernetics
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Tjoa, A.M., Wagner, R.R. (1978). A Mathematical Systems—Theory of Database Systems. In: Rose, J. (eds) Current Topics in Cybernetics and Systems. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-93104-8_222
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DOI: https://doi.org/10.1007/978-3-642-93104-8_222
Publisher Name: Springer, Berlin, Heidelberg
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