A Generalised Relational Data Model
نویسنده
چکیده
A generalised relational data model is formalised for the representation of data with nested structure of arbitrary depth. A recursive algebra for the proposed model is presented. All the operations are formally defined. The proposed model is proved to be a superset of the conventional relational model (CRM). The functionality and validity of the model is shown by a prototype implementation that has been undertaken in the functional programming language Miranda. Keywords—nested relations, recursive algebra, recursive nested operations, relational data model.
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