Relational Databases and Indexed Categories
نویسنده
چکیده
A description of relational databases in categorical terminology given here has as intended application the study of database dynamics in par ticular we view i updates as database objects in a suitable category indexed by a topos ii L fuzzy databases as database objects in sheaves Indexed cate gories are constructed to model the databases on a xed family of domains and also all databases for a varying family of domains Further we show that the process of constructing the relational completion of a relational database is a monad in a category of functors
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تاریخ انتشار 1992