Theory of sketches for database mappings. (2015)

• Record Type: Journal Article
• Authors: Majkić, Zoran; Prasad, Bhanu
• Is Part Of: International journal of intelligent information and database systems. Volume 9:Number 1(2015)
• Page Start: 32
• Page End: 53
• Publication Date: 2015
• Subjects: relational databases -- database mapping -- denotational semantics -- separation -- data federation -- database schemas -- functorial semantics -- database management systems -- relational DBMS -- RDBMS -- federated DBMS -- sketches; Database management -- Computer programs -- Periodicals; Information retrieval -- Computer programs -- Periodicals; Information storage and retrieval systems -- Computer programs -- Periodicals; Artificial intelligence -- Periodicals; Expert systems (Computer science) -- Periodicals; Intelligent agents (Computer software) -- Periodicals; 006.33
• Languages: English
• ISSNs: 1751-5858

Abstract

This paper presents two basic operations, separation and data federation, for database schemas that are used in database mapping systems and explains why functorial semantics for database mappings need a new base category instead of usual Set category. A definition of graph G for a schema database mapping system and the definition of its sketch category Sch(G) are presented. Based on this framework, functorial semantics for database mapping systems with the new base category DB are also presented.