Exonerate
发表于 2025-3-26 22:02:25
The Properties of DB Category,It is demonstrated that . is a V-category enriched over itself..Finally, we present the inductive principle for objects and the coinductive principle for arrows in the . category, and demonstrate that its “computation” Kleisly category is embedded into the database . category by a faithful forgetful functor.
高深莫测
发表于 2025-3-27 01:30:35
1868-0941 atabases, universal algebra considerations and algebraic lattices of the databases; explores the relationship of the database weak monoidal topos w.r.t. intuitionistic logic.978-3-319-35539-9978-3-319-04156-8Series ISSN 1868-0941 Series E-ISSN 1868-095X
先驱
发表于 2025-3-27 06:17:59
Introduction to C++ Programming and Graphicshe integrity-constraints for schemas. This representation is used to define the database mapping sketches (small categories), based on the fact that each schema has an identity arrow (mapping) and that the mapping-arrows satisfy the associative low for the composition of them.
glisten
发表于 2025-3-27 09:51:21
Introduction to C++ Programming and Graphicsfunctions and our universe must include the infinite set of distinct Skolem constants (for recursive schema-mapping or schema integrity constraints), our logic is then an intermediate or superintuitionistic logic in which the weak excluded middle formula ¬.∨¬¬. is valid. Thus, this weak monoidal top
小样他闲聊
发表于 2025-3-27 14:46:15
Composition of Schema Mappings: Syntax and Semantics,he integrity-constraints for schemas. This representation is used to define the database mapping sketches (small categories), based on the fact that each schema has an identity arrow (mapping) and that the mapping-arrows satisfy the associative low for the composition of them.
无力更进
发表于 2025-3-27 20:27:16
Weak Monoidal , Topos,functions and our universe must include the infinite set of distinct Skolem constants (for recursive schema-mapping or schema integrity constraints), our logic is then an intermediate or superintuitionistic logic in which the weak excluded middle formula ¬.∨¬¬. is valid. Thus, this weak monoidal top
Ingratiate
发表于 2025-3-28 01:48:37
Introduction and Technical Preliminaries,n order to render this monograph more self-contained. It is important also due to the fact that usually the database experts do a lot with logics and relational algebras, but much less with programming languages (their denotational and operational semantics) and still much less with categorial seman
Keratectomy
发表于 2025-3-28 04:27:21
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libertine
发表于 2025-3-28 06:19:51
Definition of DB Category,ppings. The objects of this category are the instance-databases (composed of the relational tables and an empty relation ⊥) and every arrow is just a set of functions (mapping-interpretations defined in Chap. .) from the set of relations of the source object (a source database) into a particular rel
巧思
发表于 2025-3-28 13:26:22
Functorial Semantics for Database Schema Mappings,e applications of this theory to data integration/exchange systems with an example for query-rewriting in GAV data integration system with (foreign) key integrity constraints, based on a coalgebra semantics. In the final section, a fixpoint operator for an infinite canonical solution in data integra