Title: Discussion of Category Model of Relational Algebra in Relational Database
Abstract: To optimize multicondition selection and projection operations in a relational database, a category model for relational databases was established based on the category theory and its characters were discussed. On the basis of this model, the connecting laws of selection and projection operations in the equivalent transformation of relational algebra in a relational database were investigated and the functions of the laws were extended.
Publication Year: 2003
Publication Date: 2003-01-01
Language: en
Type: article
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