COOL CONCEPTS AND SEMANTICS FOR DEFINITION, CONCENTRATION AND MANIPULATION OF COMPOSITE OBJECTS IN AN RELATIONAL DATA BASE

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1993-03-01
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Abstract
COOL is a composite object-oriented declarative language for use as an extension to SQL with relational databases that have a distinct object orientation. COOL is unique in that it permits unambiguous specification and quantification of relationships by means of a construct called a genitive relation. The notion of composite object concentration with COOL is also introduced. The paper describes advanced COOL constructs, for which there are no SQL equivalents, for definition and extraction of composite objects from a relational data base. These constructs permit specification, concentration and manipulation of composite objects of great complexity. It is also shown how COOL uses these constructs with the inheritance aspects of generalization or IS-A type hierarchies.
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Computer Science
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