Logic Programming and Databases

Download Logic Programming and Databases PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 3642839525
Total Pages : 295 pages
Book Rating : 4.6/5 (428 download)

DOWNLOAD NOW!


Book Synopsis Logic Programming and Databases by : Stefano Ceri

Download or read book Logic Programming and Databases written by Stefano Ceri and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: The topic of logic programming and databases. has gained in creasing interest in recent years. Several events have marked the rapid evolution of this field: the selection, by the Japanese Fifth Generation Project, of Prolog and of the relational data model as the basis for the development of new machine archi tectures; the focusing of research in database theory on logic queries and on recursive query processing; and the pragmatic, application-oriented development of expert database systems and of knowledge-base systems. As a result, an enormous amount of work has been produced in the recent literature, coupled with the spontaneous growth of several advanced projects in this area. The goal of this book is to present a systematic overview of a rapidly evolving discipline, which is presently not described with the same approach in other books. We intend to introduce stu dents and researchers to this new discipline; thus we use a plain, tutorial style, and complement the description of algorithms with examples and exercises. We attempt to achieve a balance be tween theoretical foundations and technological issues; thus we present a careful introduction to the new language Datalog, but we also focus on the efficient interfacing of logic programming formalisms (such as Prolog and Datalog) with large databases.

Foundations of Deductive Databases and Logic Programming

Download Foundations of Deductive Databases and Logic Programming PDF Online Free

Author :
Publisher : Morgan Kaufmann Publishers
ISBN 13 :
Total Pages : 760 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!


Book Synopsis Foundations of Deductive Databases and Logic Programming by : Jack Minker

Download or read book Foundations of Deductive Databases and Logic Programming written by Jack Minker and published by Morgan Kaufmann Publishers. This book was released on 1988 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt: Foundations of Deductive Databases and Logic Programming focuses on the foundational issues concerning deductive databases and logic programming. The selection first elaborates on negation in logic programming and towards a theory of declarative knowledge. Discussions focus on model theory of stratified programs, fixed point theory of nonmonotonic operators, stratified programs, semantics for negation in terms of special classes of models, relation between closed world assumption and the completed database, negation as a failure, and closed world assumption. The book then takes a look at negation as failure using tight derivations for general logic programs, declarative semantics of logic programs with negation, and declarative semantics of deductive databases and logic programs. The publication tackles converting AND-control to OR-control by program transformation, optimizing dialog, equivalences of logic programs, unification, and logic programming and parallel complexity. Topics include parallelism and structured and unstructured data, parallel algorithms and complexity, solving equations, most general unifiers, systems of equations and inequations, equivalences of logic programs, and optimizing recursive programs. The selection is a valuable source of data for researchers interested in pursuing further studies on the foundations of deductive databases and logic programming.

Datalog and Logic Databases

Download Datalog and Logic Databases PDF Online Free

Author :
Publisher : Springer Nature
ISBN 13 : 3031018540
Total Pages : 155 pages
Book Rating : 4.0/5 (31 download)

DOWNLOAD NOW!


Book Synopsis Datalog and Logic Databases by : Sergio Greco

Download or read book Datalog and Logic Databases written by Sergio Greco and published by Springer Nature. This book was released on 2022-05-31 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of logic in databases started in the late 1960s. In the early 1970s Codd formalized databases in terms of the relational calculus and the relational algebra. A major influence on the use of logic in databases was the development of the field of logic programming. Logic provides a convenient formalism for studying classical database problems and has the important property of being declarative, that is, it allows one to express what she wants rather than how to get it. For a long time, relational calculus and algebra were considered the relational database languages. However, there are simple operations, such as computing the transitive closure of a graph, which cannot be expressed with these languages. Datalog is a declarative query language for relational databases based on the logic programming paradigm. One of the peculiarities that distinguishes Datalog from query languages like relational algebra and calculus is recursion, which gives Datalog the capability to express queries like computing a graph transitive closure. Recent years have witnessed a revival of interest in Datalog in a variety of emerging application domains such as data integration, information extraction, networking, program analysis, security, cloud computing, ontology reasoning, and many others. The aim of this book is to present the basics of Datalog, some of its extensions, and recent applications to different domains.

Logics for Databases and Information Systems

Download Logics for Databases and Information Systems PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 1461556430
Total Pages : 442 pages
Book Rating : 4.4/5 (615 download)

DOWNLOAD NOW!


Book Synopsis Logics for Databases and Information Systems by : Jan Chomicki

Download or read book Logics for Databases and Information Systems written by Jan Chomicki and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: Time is ubiquitous in information systems. Almost every enterprise faces the problem of its data becoming out of date. However, such data is often valu able, so it should be archived and some means to access it should be provided. Also, some data may be inherently historical, e.g., medical, cadastral, or ju dicial records. Temporal databases provide a uniform and systematic way of dealing with historical data. Many languages have been proposed for tem poral databases, among others temporal logic. Temporal logic combines ab stract, formal semantics with the amenability to efficient implementation. This chapter shows how temporal logic can be used in temporal database applica tions. Rather than presenting new results, we report on recent developments and survey the field in a systematic way using a unified formal framework [GHR94; Ch094]. The handbook [GHR94] is a comprehensive reference on mathematical foundations of temporal logic. In this chapter we study how temporal logic is used as a query and integrity constraint language. Consequently, model-theoretic notions, particularly for mula satisfaction, are of primary interest. Axiomatic systems and proof meth ods for temporal logic [GHR94] have found so far relatively few applications in the context of information systems. Moreover, one needs to bear in mind that for the standard linearly-ordered time domains temporal logic is not re cursively axiomatizable [GHR94]' so recursive axiomatizations are by necessity incomplete.

Foundations of Deductive Databases and Logic Programming

Download Foundations of Deductive Databases and Logic Programming PDF Online Free

Author :
Publisher : Morgan Kaufmann
ISBN 13 : 1483221121
Total Pages : 753 pages
Book Rating : 4.4/5 (832 download)

DOWNLOAD NOW!


Book Synopsis Foundations of Deductive Databases and Logic Programming by : Jack Minker

Download or read book Foundations of Deductive Databases and Logic Programming written by Jack Minker and published by Morgan Kaufmann. This book was released on 2014-05-12 with total page 753 pages. Available in PDF, EPUB and Kindle. Book excerpt: Foundations of Deductive Databases and Logic Programming focuses on the foundational issues concerning deductive databases and logic programming. The selection first elaborates on negation in logic programming and towards a theory of declarative knowledge. Discussions focus on model theory of stratified programs, fixed point theory of nonmonotonic operators, stratified programs, semantics for negation in terms of special classes of models, relation between closed world assumption and the completed database, negation as a failure, and closed world assumption. The book then takes a look at negation as failure using tight derivations for general logic programs, declarative semantics of logic programs with negation, and declarative semantics of deductive databases and logic programs. The publication tackles converting AND-control to OR-control by program transformation, optimizing dialog, equivalences of logic programs, unification, and logic programming and parallel complexity. Topics include parallelism and structured and unstructured data, parallel algorithms and complexity, solving equations, most general unifiers, systems of equations and inequations, equivalences of logic programs, and optimizing recursive programs. The selection is a valuable source of data for researchers interested in pursuing further studies on the foundations of deductive databases and logic programming.

Logic and Databases

Download Logic and Databases PDF Online Free

Author :
Publisher : Trafford Publishing
ISBN 13 : 1425122906
Total Pages : 461 pages
Book Rating : 4.4/5 (251 download)

DOWNLOAD NOW!


Book Synopsis Logic and Databases by : C. J. Date

Download or read book Logic and Databases written by C. J. Date and published by Trafford Publishing. This book was released on 2007 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: Logic and databases are inextricably intertwined. The relational model in particular is essentially just elementary predicate logic, tailored to fit the needs of database management. Now, if you're a database professional, I'm sure this isn't news to you; but you still might not realize just how much everything we do in the database world is - or should be! - affected by predicate logic. Logic is everywhere. So if you're a database professional you really owe it to yourself to understand the basics of formal logic, and you really ought to be able to explain (and perhaps defend) the connections between formal logic and database management. And that's what this book is about. What it does is show, through a series of partly independent and partly interrelate essays, just how various crucial aspects of database technology-some of them very familiar, others maybe less so- are solidly grounded in formal logic. It is divided into five parts: *Basic Logic *Logic and Database Management *Logic and Database Design *Logic and Algebra *Logic and the Third Manifesto There's also a lengthy appendix, containing a collection of frequently asked questions (and some answers) on various aspects of logic and database management. Overall, my goal is to help you realize the importance of logic in everything you do, and also- I hope- to help you see that logic can be fun.

Readings in Artificial Intelligence and Databases

Download Readings in Artificial Intelligence and Databases PDF Online Free

Author :
Publisher : Morgan Kaufmann
ISBN 13 : 9780934613538
Total Pages : 700 pages
Book Rating : 4.6/5 (135 download)

DOWNLOAD NOW!


Book Synopsis Readings in Artificial Intelligence and Databases by : John Mylopoulos

Download or read book Readings in Artificial Intelligence and Databases written by John Mylopoulos and published by Morgan Kaufmann. This book was released on 1989 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt: The interaction of database and AI technologies is crucial to such applications as data mining, active databases, and knowledge-based expert systems. This volume collects the primary readings on the interactions, actual and potential, between these two fields. The editors have chosen articles to balance significant early research and the best and most comprehensive articles from the 1980s. An in-depth introduction discusses basic research motivations, giving a survey of the history, concepts, and terminology of the interaction. Major themes, approaches and results, open issues and future directions are all discussed, including the results of a major survey conducted by the editors of current work in industry and research labs. Thirteen sections follow, each with a short introduction. Topics examined include semantic data models with emphasis on conceptual modeling techniques for databases and information systems and the integration of data model concepts in high-level data languages, definition and maintenance of integrity constraints in databases and knowledge bases, natural language front ends, object-oriented database management systems, implementation issues such as concurrency control and error recovery, and representation of time and knowledge incompleteness from the viewpoints of databases, logic programming, and AI.

Foundations of Disjunctive Logic Programming

Download Foundations of Disjunctive Logic Programming PDF Online Free

Author :
Publisher : MIT Press
ISBN 13 : 9780262121651
Total Pages : 344 pages
Book Rating : 4.1/5 (216 download)

DOWNLOAD NOW!


Book Synopsis Foundations of Disjunctive Logic Programming by : Jorge Lobo

Download or read book Foundations of Disjunctive Logic Programming written by Jorge Lobo and published by MIT Press. This book was released on 1992 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Foundations of Logic Programming

Download Foundations of Logic Programming PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 3642968260
Total Pages : 135 pages
Book Rating : 4.6/5 (429 download)

DOWNLOAD NOW!


Book Synopsis Foundations of Logic Programming by : J. W. Lloyd

Download or read book Foundations of Logic Programming written by J. W. Lloyd and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives an account oC the mathematical Coundations oC logic programming. I have attempted to make the book selC-contained by including prooCs of almost all the results needed. The only prerequisites are some Camiliarity with a logic programming language, such as PROLOG, and a certain mathematical maturity. For example, the reader should be Camiliar with induction arguments and be comCortable manipulating logical expressions. Also the last chapter assumes some acquaintance with the elementary aspects of metric spaces, especially properties oC continuous mappings and compact spaces. Chapter 1 presents the declarative aspects of logic programming. This chapter contains the basic material Crom first order logic and fixpoint theory which will be required. The main concepts discussed here are those oC a logic program, model, correct answer substitution and fixpoint. Also the unification algorithm is discussed in some detail. Chapter 2 is concerned with the procedural semantics oC logic programs. The declarative concepts are implemented by means oC a specialized Corm oC resolution, called SLD-resolution. The main results of this chapter concern the soundness and completeness oC SLD-resolution and the independence oC the computation rule. We also discuss the implications of omitting the occur check from PROLOG implementations. Chapter 3 discusses negation. Current PROLOG systems implement a form of negation by means of the negation as failure rule. The main results of this chapter are the soundness and completeness oC the negation as failure rule.

A 25-Year Perspective on Logic Programming

Download A 25-Year Perspective on Logic Programming PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 3642143083
Total Pages : 342 pages
Book Rating : 4.6/5 (421 download)

DOWNLOAD NOW!


Book Synopsis A 25-Year Perspective on Logic Programming by : Agostino Dovier

Download or read book A 25-Year Perspective on Logic Programming written by Agostino Dovier and published by Springer Science & Business Media. This book was released on 2010-06-30 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book celebratesthe 25th anniversaryof GULP—the Italian Associationfor LogicProgramming.Authored by Italian researchersat the leading edge of their ?elds, it presents an up-to-date survey of a broad collection of topics in logic programming, making it a useful reference for both researchers and students. During its 25-year existence, GULP has organised a wide range of national and international activities, including both conferences and summer schools. It has been especially active in supporting and encouraging young researchers, by providing scholarships for GULP events and awarding distinguished disser- tions. WeintheinternationallogicprogrammingcommunitylookuponGULPwith a combination of envy, admiration and gratitude. We are pleased to attend its conferences and summer schools, where we can learn about scienti?c advances, catch up with old friends and meet young students. It is an honour for me to acknowledge our appreciation to GULP for its outstanding contributions to our ?eld and to express our best wishes for its continuing prosperity in the future. March 2010 Robert Kowalski Imperial College London Preface On June 18, 1985, a group of pioneering researchers, including representatives from industry, national research labs, and academia, attended the constituent assembly of the Group of researchers and Users of Logic Programming (GULP) association. That was the starting point of a long adventure in science, that 1 we are still experiencing 25 years later. This volume celebrates this important event.

Applications of Logic Databases

Download Applications of Logic Databases PDF Online Free

Author :
Publisher : Springer
ISBN 13 :
Total Pages : 316 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!


Book Synopsis Applications of Logic Databases by : Raghu Ramakrishnan

Download or read book Applications of Logic Databases written by Raghu Ramakrishnan and published by Springer. This book was released on 1995 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: The premise behind developing powerful declarative database languages is compelling: by enabling users to specify their queries (and their integrity constraints) in a clear, non-operational way, they make the user's task easier, and provide the database system with more opportunities for optimization. Relational database systems offer a striking proof that this premise is indeed valid. The most popular relational query language, SQL, is based upon relational algebra and calculus, i.e., a small fragment of first-order logic, and the ease of writing queries in SQL (in comparison to more navigational languages) has been an important factor in the commercial success of relational databases. It is well-known that SQL has some important limitations, in spite of its success and popUlarity. Notably, the query language is non-recursive, and support for integrity constraints is limited. Indeed, recognizing these problems, the latest standard, SQL-92, provides increased support for integrity constraints, and it is anticipated that the successor to the SQL-92 standard, called SQL3, RECURSIVE UNION operation [1]. Logic database systems have will include a concentrated on these extensions to the relational database paradigm, and some systems (e.g., Bull's DEL prototype) have even incorporated object-oriented features (another extension likely to appear in SQL3).

Declarative Logic Programming

Download Declarative Logic Programming PDF Online Free

Author :
Publisher : ACM Books
ISBN 13 : 9781970001969
Total Pages : 615 pages
Book Rating : 4.0/5 (19 download)

DOWNLOAD NOW!


Book Synopsis Declarative Logic Programming by : Michael Kifer

Download or read book Declarative Logic Programming written by Michael Kifer and published by ACM Books. This book was released on 2018-09-19 with total page 615 pages. Available in PDF, EPUB and Kindle. Book excerpt: The idea of this book grew out of a symposium that was held at Stony Brook in September 2012 in celebration of David S.Warren's fundamental contributions to Computer Science and the area of Logic Programming in particular. Logic Programming (LP) is at the nexus of Knowledge Representation, Artificial Intelligence, Mathematical Logic, Databases, and Programming Languages. It is fascinating and intellectually stimulating due to the fundamental interplay among theory, systems, and applications brought about by logic. Logic programs are more declarative in the sense that they strive to be logical specifications of "what" to do rather than "how" to do it, and thus they are high-level and easier to understand and maintain. Yet, without being given an actual algorithm, LP systems implement the logical specifications automatically. Several books cover the basics of LP but focus mostly on the Prolog language with its incomplete control strategy and non-logical features. At the same time, there is generally a lack of accessible yet comprehensive collections of articles covering the key aspects in declarative LP. These aspects include, among others, well-founded vs. stable model semantics for negation, constraints, object-oriented LP, updates, probabilistic LP, and evaluation methods, including top-down vs. bottom-up, and tabling. For systems, the situation is even less satisfactory, lacking accessible literature that can help train the new crop of developers, practitioners, and researchers. There are a few guides onWarren's Abstract Machine (WAM), which underlies most implementations of Prolog, but very little exists on what is needed for constructing a state-of-the-art declarative LP inference engine. Contrast this with the literature on, say, Compilers, where one can first study a book on the general principles and algorithms and then dive in the particulars of a specific compiler. Such resources greatly facilitate the ability to start making meaningful contributions quickly. There is also a dearth of articles about systems that support truly declarative languages, especially those that tie into first-order logic, mathematical programming, and constraint solving. LP helps solve challenging problems in a wide range of application areas, but in-depth analysis of their connection with LP language abstractions and LP implementation methods is lacking. Also, rare are surveys of challenging application areas of LP, such as Bioinformatics, Natural Language Processing, Verification, and Planning. The goal of this book is to help fill in the previously mentioned void in the LP literature. It offers a number of overviews on key aspects of LP that are suitable for researchers and practitioners as well as graduate students. The following chapters in theory, systems, and applications of LP are included.

Transactions and Change in Logic Databases

Download Transactions and Change in Logic Databases PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 9783540653059
Total Pages : 412 pages
Book Rating : 4.6/5 (53 download)

DOWNLOAD NOW!


Book Synopsis Transactions and Change in Logic Databases by : Burkhard Freitag

Download or read book Transactions and Change in Logic Databases written by Burkhard Freitag and published by Springer Science & Business Media. This book was released on 1998-10-28 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the thoroughly refereed and revised post-workshop proceedings of two international meetings devoted to deductive databases and logic programming. The technical papers presenting original research results were carefully reviewed and selected for inclusion in the present book, together with several survey articles summarizing the state of the art in the area. Thus, the book is the ultimate reference for anybody interested in the theory and application of deductive databases and logic programming.

Interactive Relational Database Design

Download Interactive Relational Database Design PDF Online Free

Author :
Publisher : Lecture Notes in Computer Science
ISBN 13 :
Total Pages : 208 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!


Book Synopsis Interactive Relational Database Design by : Tapan P. Bagchi

Download or read book Interactive Relational Database Design written by Tapan P. Bagchi and published by Lecture Notes in Computer Science. This book was released on 1989-11-08 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Relational databases have quickly come to be regarded as a natural and efficient way of organizing information. Duplicate data can be eliminated and powerful set-theoretic operations can be used to manipulate data. But finding the right relations for a database is not yet a trivial step for the uninitiated. This book presents a comprehensive logic programming implementation of the relational design methodology. It employs TURBO Prolog to test and establish computational viability of the relevant algorithms. It also presents the expert system prototype of a user interface, designed especially for builders of computerized databases who may have no formal training in database design.

Logic Programming

Download Logic Programming PDF Online Free

Author :
Publisher : MIT Press
ISBN 13 : 9780262631808
Total Pages : 454 pages
Book Rating : 4.6/5 (318 download)

DOWNLOAD NOW!


Book Synopsis Logic Programming by : Jan Maluszynski

Download or read book Logic Programming written by Jan Maluszynski and published by MIT Press. This book was released on 1997-10-10 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: The themes of the 1997 conference are new theoretical and practical accomplishments in logic programming, new research directions where ideas originating from logic programming can play a fundamental role, and relations between logic programming and other fields of computer science. The annual International Logic Programming Symposium, traditionally held in North America, is one of the main international conferences sponsored by the Association of Logic Programming. The themes of the 1997 conference are new theoretical and practical accomplishments in logic programming, new research directions where ideas originating from logic programming can play a fundamental role, and relations between logic programming and other fields of computer science. Topics include theoretical foundations, constraints, concurrency and parallelism, deductive databases, language design and implementation, nonmonotonic reasoning, and logic programming and the Internet.

Oracle Database Programming using Java and Web Services

Download Oracle Database Programming using Java and Web Services PDF Online Free

Author :
Publisher : Digital Press
ISBN 13 : 9780080525112
Total Pages : 1120 pages
Book Rating : 4.5/5 (251 download)

DOWNLOAD NOW!


Book Synopsis Oracle Database Programming using Java and Web Services by : Kuassi Mensah

Download or read book Oracle Database Programming using Java and Web Services written by Kuassi Mensah and published by Digital Press. This book was released on 2011-04-08 with total page 1120 pages. Available in PDF, EPUB and Kindle. Book excerpt: The traditional division of labor between the database (which only stores and manages SQL and XML data for fast, easy data search and retrieval) and the application server (which runs application or business logic, and presentation logic) is obsolete. Although the books primary focus is on programming the Oracle Database, the concepts and techniques provided apply to most RDBMS that support Java including Oracle, DB2, Sybase, MySQL, and PostgreSQL. This is the first book to cover new Java, JDBC, SQLJ, JPublisher and Web Services features in Oracle Database 10g Release 2 (the coverage starts with Oracle 9i Release 2). This book is a must-read for database developers audience (DBAs, database applications developers, data architects), Java developers (JDBC, SQLJ, J2EE, and OR Mapping frameworks), and to the emerging Web Services assemblers. Describes pragmatic solutions, advanced database applications, as well as provision of a wealth of code samples. Addresses programming models which run within the database as well as programming models which run in middle-tier or client-tier against the database. Discusses languages for stored procedures: when to use proprietary languages such as PL/SQL and when to use standard languages such as Java; also running non-Java scripting languages in the database. Describes the Java runtime in the Oracle database 10g (i.e., OracleJVM), its architecture, memory management, security management, threading, Java execution, the Native Compiler (i.e., NCOMP), how to make Java known to SQL and PL/SQL, data types mapping, how to call-out to external Web components, EJB components, ERP frameworks, and external databases. Describes JDBC programming and the new Oracle JDBC 10g features, its advanced connection services (pooling, failover, load-balancing, and the fast database event notification mechanism) for clustered databases (RAC) in Grid environments. Describes SQLJ programming and the latest Oracle SQLJ 10g features , contrasting it with JDBC. Describes the latest Database Web services features, Web services concepts and Services Oriented Architecture (SOA) for DBA, the database as Web services provider and the database as Web services consumer. Abridged coverage of JPublisher 10g, a versatile complement to JDBC, SQLJ and Database Web Services.

Deductive Databases and Logic Programming

Download Deductive Databases and Logic Programming PDF Online Free

Author :
Publisher : Addison-Wesley Longman
ISBN 13 : 9780201568974
Total Pages : 432 pages
Book Rating : 4.5/5 (689 download)

DOWNLOAD NOW!


Book Synopsis Deductive Databases and Logic Programming by : Subrata Kumar Das

Download or read book Deductive Databases and Logic Programming written by Subrata Kumar Das and published by Addison-Wesley Longman. This book was released on 1992-01 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a clear account of the "next generation" database technology illustrating how to reduce additional information from databases by applying deductive rules. The book first takes readers step-by-step through the basics of logic and logic programming and then surveys developments in deductive databases.