Meta-level control for deductive database systems /
The development of database technology has currently reached the stage of deductive database systems which use Horn clauses for defining relations. An important characteristic of these systems is the clear separation of logic and control. However, the programmer cannot affect the control part of a d...
| Main Author: | |
|---|---|
| Corporate Author: | |
| Format: | eBook |
| Language: | English |
| Published: |
Berlin ; New York :
Springer-Verlag,
©1991.
|
| Series: | Lecture notes in computer science ;
479. |
| Subjects: | |
| Online Access: | Connect to the full text of this electronic book |
| Summary: | The development of database technology has currently reached the stage of deductive database systems which use Horn clauses for defining relations. An important characteristic of these systems is the clear separation of logic and control. However, the programmer cannot affect the control part of a deductive database system. To eliminate this deficiency, this monograph presents a so-called expert deductive database system that allows explicit control of the deduction process. The system consists of an object-level describing the logical aspects of a problem and of a meta-level that contains application-specific control information affecting the object-level deduction process. For example, object-level rules can be disregarded, and some tuples deduced at the object-level can be preferred to others. Besides the architecture of this system, the book also identifies some important possibilities of deduction control which are explained by characteristic examples. |
|---|---|
| Item Description: | Electronic resource. |
| Physical Description: | 1 online resource (vi, 155 pages) : illustrations. |
| Bibliography: | Includes bibliographical references (pages 149-152) and index. |
| ISBN: | 9783540470823 (electronic bk.) 3540470824 (electronic bk.) |