Logic And Databases

Logic and Databases PDF
Author: C. J. Date
Publisher: Trafford Publishing
ISBN: 1425122906
Size: 40.19 MB
Format: PDF, ePub, Mobi
Category : Computers
Languages : en
Pages : 445
View: 7314

Get Book

Databases are based on logic - right? Everybody knows that. Or do they? Chris Date's most recent book explores the myriad ways in which logic affects the database world.

Logic And Relational Theory

Logic and Relational Theory PDF
Author: C. J. Date
Publisher: Technics Publications
ISBN: 1634628772
Size: 80.45 MB
Format: PDF, Mobi
Category : Computers
Languages : en
Pages : 512
View: 3768

Get Book

This book is a revised, upgraded, and hugely improved version of an earlier one called Logic and Databases. Although it’s effectively a brand new book, therefore, the following remarks from that earlier book are still relevant here. First, logic and databases are inextricably intertwined. The relational model itself is essentially just elementary logic, tailored to database needs. Now, if you’re a database professional, this won’t be 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 logic. Logic is fundamental, and everywhere. As a database professional, therefore, you owe it to yourself to understand the basics of formal logic, and you ought to be able to explain (and perhaps defend) the connections between formal logic and database technology. And that’s what this book is about. What it does is show, through a series of partly independent, partly interrelated essays, just how various crucial aspects of database technology—some of them very familiar, others maybe less so—are solidly grounded in formal logic. Overall, the 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.

Universal Algebra Algebraic Logic And Databases

Universal Algebra  Algebraic Logic  and Databases PDF
Author: B. Plotkin
Publisher: Springer Science & Business Media
ISBN: 940110820X
Size: 51.18 MB
Format: PDF, Kindle
Category : Mathematics
Languages : en
Pages : 438
View: 3701

Get Book

Modern algebra, which not long ago seemed to be a science divorced from real life, now has numerous applications. Many fine algebraic structures are endowed with meaningful contents. Now and then practice suggests new and unexpected structures enriching algebra. This does not mean that algebra has become merely a tool for applications. Quite the contrary, it significantly benefits from the new connections. The present book is devoted to some algebraic aspects of the theory of databases. It consists of three parts. The first part contains information about universal algebra, algebraic logic is the subject of the second part, and the third one deals with databases. The algebraic material of the flI'St two parts serves the common purpose of applying algebra to databases. The book is intended for use by mathematicians, and mainly by algebraists, who realize the necessity to unite theory and practice. It is also addressed to programmers, engineers and all potential users of mathematics who want to construct their models with the help of algebra and logic. Nowadays, the majority of professional mathematicians work in close cooperation with representatives of applied sciences and even industrial technology. It is neces sary to develop an ability to see mathematics in different particular situations. One of the tasks of this book is to promote the acquisition of such skills.

Logic Programming And Databases

Logic Programming and Databases PDF
Author: Stefano Ceri
Publisher: Springer Science & Business Media
ISBN: 3642839525
Size: 65.49 MB
Format: PDF, Docs
Category : Computers
Languages : en
Pages : 284
View: 5638

Get Book

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 Logic And Functional Programming

Foundations of Logic and Functional Programming PDF
Author: Mauro Boscarol
Publisher: Springer Science & Business Media
ISBN: 9783540191292
Size: 15.49 MB
Format: PDF, ePub
Category : Computers
Languages : en
Pages : 218
View: 3019

Get Book

This volume consists of some of the papers that were delivered during the workshop on "Foundations of Logic and Functional Programming" held in Trento, Italy, from December 15th to 19th, 1986. The meeting centered on themes and trends in Functional Programming and in Logic Programming. This book contains five papers contributed by the invited speakers and five selected contributions.

Applications Of Logic Databases

Applications of Logic Databases PDF
Author: Raghu Ramakrishnan
Publisher: Springer Science & Business Media
ISBN: 1461522072
Size: 45.28 MB
Format: PDF, ePub
Category : Computers
Languages : en
Pages : 280
View: 6971

Get Book

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).

Logic In Databases

Logic in Databases PDF
Author: Dino Pedreschi
Publisher: Springer Science & Business Media
ISBN: 9783540618140
Size: 68.36 MB
Format: PDF
Category : Computers
Languages : en
Pages : 495
View: 7178

Get Book

This book constitutes the strictly refereed post-workshop proceedings of the International Workshop on Logic in Databases, LID'96, held in San Miniato, Italy, in July 1996, as the final meeting of an EC-US cooperative activity. The volume presents 21 revised full papers selected from 49 submissions as well as 3 invited contributions and a summary of a panel discussion on deductive databases: challenges, opportunities and future directions. The retrospective survey on logic and databases by Jack Minker deserves a special mention: it is a 56-page overview and lists 357 references. The papers are organized in sections on uncertainty, temporal and spatial reasoning, updates, active databases, semantics, advanced applications, query evaluation, language extensions, and logic constructs and expressive power.

Readings In Artificial Intelligence And Databases

Readings in Artificial Intelligence and Databases PDF
Author: John Mylopoulos
Publisher: Morgan Kaufmann
ISBN: 9780934613538
Size: 39.81 MB
Format: PDF, Mobi
Category : Computers
Languages : en
Pages : 688
View: 6305

Get Book

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.

Datalog And Logic Databases

Datalog and Logic Databases PDF
Author: Sergio Greco
Publisher: Morgan & Claypool Publishers
ISBN: 1627051147
Size: 65.64 MB
Format: PDF, ePub, Mobi
Category : Computers
Languages : en
Pages : 169
View: 4911

Get Book

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.

Johan Van Benthem On Logic And Information Dynamics

Johan van Benthem on Logic and Information Dynamics PDF
Author: Alexandru Baltag
Publisher: Springer
ISBN: 3319060252
Size: 26.45 MB
Format: PDF, Mobi
Category : Philosophy
Languages : en
Pages : 1027
View: 4821

Get Book

This book illustrates the program of Logical-Informational Dynamics. Rational agents exploit the information available in the world in delicate ways, adopt a wide range of epistemic attitudes, and in that process, constantly change the world itself. Logical-Informational Dynamics is about logical systems putting such activities at center stage, focusing on the events by which we acquire information and change attitudes. Its contributions show many current logics of information and change at work, often in multi-agent settings where social behavior is essential, and often stressing Johan van Benthem's pioneering work in establishing this program. However, this is not a Festschrift, but a rich tapestry for a field with a wealth of strands of its own. The reader will see the state of the art in such topics as information update, belief change, preference, learning over time, and strategic interaction in games. Moreover, no tight boundary has been enforced, and some chapters add more general mathematical or philosophical foundations or links to current trends in computer science. The theme of this book lies at the interface of many disciplines. Logic is the main methodology, but the various chapters cross easily between mathematics, computer science, philosophy, linguistics, cognitive and social sciences, while also ranging from pure theory to empirical work. Accordingly, the authors of this book represent a wide variety of original thinkers from different research communities. And their interconnected themes challenge at the same time how we think of logic, philosophy and computation. Thus, very much in line with van Benthem's work over many decades, the volume shows how all these disciplines form a natural unity in the perspective of dynamic logicians (broadly conceived) exploring their new themes today. And at the same time, in doing so, it offers a broader conception of logic with a certain grandeur, moving its horizons beyond the traditional study of consequence relations.

Constraints And Databases

Constraints and Databases PDF
Author: Raghu Ramakrishnan
Publisher: Springer Science & Business Media
ISBN: 9780792380450
Size: 16.55 MB
Format: PDF, Docs
Category : Computers
Languages : en
Pages : 192
View: 5710

Get Book

Constraints and Databases contains seven contributions on the rapidly evolving research area of constraints and databases. This collection of original research articles has been compiled as a tribute to Paris C. Kanellakis, one of the pioneers in the field. Constraints have long been used for maintaining the integrity of databases. More recently, constraint databases have emerged where databases store and manipulate data in the form of constraints. The generality of constraint databases makes them highly attractive for many applications. Constraints provide a uniform mechanism for describing heterogenous data, and advanced constraint solving methods can be used for efficient manipulation of constraint data. The articles included in this book cover the range of topics involving constraints and databases; join algorithms, evaluation methods, applications (e.g. data mining) and implementations of constraint databases, as well as more traditional topics such as integrity constraint maintenance. Constraints and Databases is an edited volume of original research comprising invited contributions by leading researchers.

Joe Celko S Data And Databases

Joe Celko s Data and Databases PDF
Author: Joe Celko
Publisher: Morgan Kaufmann
ISBN: 9781558604322
Size: 45.12 MB
Format: PDF, Mobi
Category : Computers
Languages : en
Pages : 382
View: 4496

Get Book

This text covers basic database concepts to provide a conceptual understanding of data and databases necessary for database design and development.

Advances In Data Base Theory

Advances in Data Base Theory PDF
Author: Hervé Gallaire
Publisher: Springer Science & Business Media
ISBN: 1461593859
Size: 15.11 MB
Format: PDF, ePub, Docs
Category : Computers
Languages : en
Pages : 432
View: 2393

Get Book

This is the third book devoted to theoretical issues in data bases that we have edited. Each book has been the outgrowth of papers held at a workshop in Toulouse, France. The first workshop, held in 1977 focused primarily on the important topic of logic and databases. The book, Logic and Databases was the result of this effort. The diverse uses of logic for databases such as its use as a theoretical basis for databases, for deduction and for integ rity constraints formulation and checking was described in the chapters of the book. The interest generated by the first workshop led to the deci sion to conduct other workshops focused on theoretical issues in databases. In addition to logic and databases the types of papers were expanded to include other important theoretical issues such as dependency theory which, although it sometimes uses logic as a basis, does not fit with our intended meaning of logic and databases explored at the first workshop. Because of the broader coverage, and because we anticipated further workshops, the second book was entitled, Advances in Database Theory - Volume 1. The book "Logic and Databases" should be considered Volume 0 of this series.

Computer Science Logic

Computer Science Logic PDF
Author: Julian Bradfield
Publisher: Springer Science & Business Media
ISBN: 3540442405
Size: 23.85 MB
Format: PDF, ePub
Category : Computers
Languages : en
Pages : 628
View: 5964

Get Book

The Annual Conference of the European Association for Computer Science Logic, CSL 2002, was held in the Old College of the University of Edinburgh on 22–25 September 2002. The conference series started as a programme of Int- national Workshops on Computer Science Logic, and then in its sixth meeting became the Annual Conference of the EACSL. This conference was the sixteenth meeting and eleventh EACSL conference; it was organized by the Laboratory for Foundations of Computer Science at the University of Edinburgh. The CSL 2002 Programme Committee considered 111 submissions from 28 countries during a two week electronic discussion; each paper was refereed by at least three reviewers. The Committee selected 37 papers for presentation at the conference and publication in these proceedings. The Programme Committee invited lectures from Susumu Hayashi, Frank Neven, and Damian Niwinski; ́ the papers provided by the invited speakers appear at the front of this volume. In addition to the main conference, two tutorials – ‘Introduction to Mu- Calculi’ (Julian Brad?eld) and ‘Parametrized Complexity’ (Martin Grohe) – were given on the previous day.