Raghu Ramakrishnan

Johannes Gehrke

Database Management Systems

Abstract: "An increasing number of deductive systems are now either available or becoming available (e.g., Aditi, CORAL, EKS, LDL, LOGRES, LOLA, NAIL-Glue, RDL, XSB). The workshop schedule features twelve papers describing a range of applications, and demo presentations of several implemented systems. The proceedings contain all presented papers, and short demo descriptions. The papers are in order of presentation, followed by demo descriptions; included are descriptions of two demos that are not on the presentation schedule."

In Conjunction with ILPS, Vancouver, B.C., October 30, 1993

Proceedings of the Workshop on Programming with Logic Databases

Database Management Systems provides comprehensive and up-to-date coverage of the fundamentals of database systems. Coherent explanations and practical examples have made this one of the leading texts in the field. The third edition continues in this tradition, enhancing it with more practical material. The new edition has been reorganized to allow more flexibility in the way the course is taught. Now, instructors can easily choose whether they would like to teach a course which emphasizes database application development or a course that emphasizes database systems issues. New overview chapters at the beginning of parts make it possible to skip other chapters in the part if you don't want the detail. More applications and examples have been added throughout the book, including SQL and Oracle examples. The applied flavor is further enhanced by the two new database applications chapters.

Peter Stuckey

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.

Constraints and Databases

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).

Applications of Logic Databases

Rachel Andrew

Tim Kadlec

Jens Oliver Meiert

Michael King

Chris Lilley

 Lea Verou

Catalin Rosu

Ian Devlin

 Raph Levien

 Jason Pamental

Simon Hearne

Aleyda Solis

Jamie Indigo

Olu Niyi-Awosusi

Alex Tait

Karolina Szczur

Yana Dimova

Tom Van Goethem

Nurullah Demir

Barry Pollard

Shubhie Panicker

Michael DiBlasio

Christian Liebel

Hemanth HM

Alex Denning

Ahmad Awais

Henri Helvetica

Moritz Firsching

Luca Versari

Sami Boukortt

Jyrki Alakuijala

Rory Hewitt

Leonardo Zizzamia

Andrew Galloni

Robin Marx

Mike Bishop

The Web Almanac is an annual research project by the web development community to better understand how the web is built and experienced. Industry experts and a team of peer reviewers and data analysts research the state of the web, one chapter at a time, focused in areas of web page composition, user experience, content publishing, and content delivery. The result is a richly detailed report brimming with insightful analysis written by subject matter experts built on a solid foundation of statistics aggregated over millions of top websites.

HTTP Archive's annual state of the web report

The 2020 Web Almanac

Raghu Ramakrishnan

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