Stating The Obvious And Other Database Writings
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Stating The Obvious And Other Database Writings
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Author : C. J. Date
language : en
Publisher: Technics Publications
Release Date :
Stating The Obvious And Other Database Writings written by C. J. Date and has been published by Technics Publications this book supported file pdf, txt, epub, kindle and other format this book has been release on with Computers categories.
Some things seem so obvious that they don’t need to be spelled out in detail. Or do they? In computing, at least (and probably in any discipline where accuracy and precision are important), it can be quite dangerous just to assume that some given concept is “obvious,” and indeed universally understood. Serious mistakes can happen that way! The first part of this book discusses features of the database field—equality, assignment, naming—where just such an assumption seems to have been made, and it describes some of the unfortunate mistakes that have occurred as a consequence. It also explains how and why the features in question aren’t quite as obvious as they might seem, and it offers some advice on how to work around the problems caused by assumptions to the contrary. Other parts of the book also deal with database issues where devoting some preliminary effort to spelling out exactly what the issues in question entailed could have led to much better interfaces and much more carefully designed languages. The issues discussed include redundancy and indeterminacy; persistence, encapsulation, and decapsulation; the ACID properties of transactions; and types vs. units of measure. Finally, the book also contains a detailed deconstruction of, and response to, various recent pronouncements from the database literature, all of them having to do with relational technology. Once again, the opinions expressed in those pronouncements might seem “obvious” to some people (to the writers at least, presumably), but the fact remains that they’re misleading at best, and in most cases just flat out wrong.
Fifty Years Of Relational And Other Database Writings
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Author : C.J. Date
language : en
Publisher: Technics Publications
Release Date :
Fifty Years Of Relational And Other Database Writings written by C.J. Date and has been published by Technics Publications this book supported file pdf, txt, epub, kindle and other format this book has been release on with Computers categories.
Fifty years of relational. It’s hard to believe the relational model has been around now for over half a century! But it has—it was born on August 19th, 1969, when Codd’s first database paper was published. And Chris Date has been involved with it for almost the whole of that time, working closely with Codd for many years and publishing the very first, and definitive, book on the subject in 1975. In this book’s title essay, Chris offers his own unique perspective (two chapters) on those fifty years. No database professional can afford to miss this one of a kind history. But there’s more to this book than just a little personal history. Another unique feature is an extensive and in depth discussion (nine chapters) of a variety of frequently asked questions on relational matters, covering such topics as mathematics and the relational model; relational algebra; predicates; relation valued attributes; keys and normalization; missing information; and the SQL language. Another part of the book offers detailed responses to critics (four chapters). Finally, the book also contains the text of several recent interviews with Chris Date, covering such matters as RM/V2, XML, NoSQL, The Third Manifesto, and how SQL came to dominate the database landscape.
Database Dreaming Volume I
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Author : C. J. Date
language : en
Publisher: Technics Publications
Release Date : 2022-02-11
Database Dreaming Volume I written by C. J. Date and has been published by Technics Publications this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-02-11 with Computers categories.
Along with its companion volume (Database Dreaming Volume II), this book offers a collection of essays on the general topic of relational databases and relational database technology. Most of those essays, though not all, have been published before, but only in journals and magazines that are now hard to find or in books that are now out of print. Here’s a lightly edited excerpt from the preface (so this is the author speaking): I went back and reviewed all of those early essays, looking for ones that seemed worth reviving (or, rather, revising and reviving) at this time. Of course, some of them definitely weren’t! However, out of a total of around 130 original papers, I did find some 20 or so that seemed to me worth preserving and hadn’t already been incorporated in, or superseded by, more recent books of mine. So I tracked down the original versions of those 20 or so papers and set to work. When I was done, though, I found I had somewhere in excess of 600 pages on my hands—too much, in my view, for just one book, and so I split them across two separate volumes. Highlights of the present volume include a discussion of the difficulties involved in providing a relational interface to a nonrelational system; a tutorial on the quantifiers and what happens to them under three-valued logic; an examination of the effect of user defined types on optimization; some thoughts on normalization and database design tools; and caveats regarding certain important database operators, especially outer join and negation.
E F Codd And Relational Theory Revised Edition
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Author : C. J. Date
language : en
Publisher: Technics Publications
Release Date :
E F Codd And Relational Theory Revised Edition written by C. J. Date and has been published by Technics Publications this book supported file pdf, txt, epub, kindle and other format this book has been release on with Computers categories.
E. F. Codd’s relational model of data has been described as one of the three greatest inventions of all time (the other two being agriculture and the scientific method), and his receipt of the 1981 ACM Turing Award, the top award in computer science, for inventing it was thoroughly deserved. The papers in which Codd first described his model were staggering in their originality; they had, and continue to have, a huge impact on just about every aspect of the way we do business in the world today. And yet few people, even in the professional database community, are truly familiar with those papers. This book—a thorough overhaul and rewrite of an earlier book by the same name—is an attempt to remedy this sorry state of affairs. In it, well known author C. J. Date provides a detailed examination of all of Codd’s major database publications, explaining the nature of his contribution in depth, and in particular highlighting not only the many things he got right but also some of the things he got wrong. Database theory and practice have evolved considerably since Codd first defined his relational model, back in 1969. This book draws on decades of experience to present the most up to date treatment of the material possible. Anyone with a professional interest in databases can benefit from the insights it contains. The book is product independent.
Database Dreaming Volume Ii
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Author : C. J. Date
language : en
Publisher: Technics Publications
Release Date : 2022-02-11
Database Dreaming Volume Ii written by C. J. Date and has been published by Technics Publications this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-02-11 with Computers categories.
Along with its companion volume (Database Dreaming Volume I), this book offers a collection of essays on the general topic of relational databases and relational database technology. Most of those essays, though not all, have been published before, but only in journals and magazines that are now hard to find or in books that are now out of print. Here’s a lightly edited excerpt from the preface (so this is the author speaking): I went back and reviewed all of those early essays, looking for ones that seemed worth reviving (or, rather, revising and reviving) at this time. Of course, some of them definitely weren’t! However, out of a total of around 130 original papers, I did find some 20 or so that seemed to me worth preserving and hadn’t already been incorporated in, or superseded by, more recent books of mine. So I tracked down the original versions of those 20 or so papers and set to work. When I was done, though, I found I had somewhere in excess of 600 pages on my hands—too much, in my view, for just one book, and so I split them across two separate volumes. Highlights of the present volume include a detailed explanation of the multiple assignment operator and why it’s so essential; an investigation into why object and database technologies are so much more different than they’re often made out to be; a critical examination of SQL’s support for pointers (“references”); a tutorial on the counterintuitive (but crucial) concept of tables with no columns; and an annotated and extended debate between the author and E. F. Codd, inventor of the relational model, on the subject of nulls and three-valued logic.
Database Design And Relational Theory
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Author : C.J. Date
language : en
Publisher: "O'Reilly Media, Inc."
Release Date : 2012-04-17
Database Design And Relational Theory written by C.J. Date and has been published by "O'Reilly Media, Inc." this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-04-17 with Computers categories.
What makes this book different from others on database design? Many resources on design practice do little to explain the underlying theory, and books on design theory are aimed primarily at theoreticians. In this book, renowned expert Chris Date bridges the gap by introducing design theory in ways practitioners can understand—drawing on lessons learned over four decades of experience to demonstrate why proper database design is so critical in the first place. Every chapter includes a set of exercises that show how to apply the theoretical ideas in practice, provide additional information, or ask you to prove some simple theoretical result. If you’re a database professional familiar with the relational model, and have more than a passing interest in database design, this book is for you. Questions this book answers include: Why is Heath’s Theorem so important? What is The Principle of Orthogonal Design? What makes some JDs reducible and others irreducible? Why does dependency preservation matter? Should data redundancy always be avoided? Can it be? Databases often stay in production for decades, and careful design is critical for avoiding subtle errors and processing problems over time. If they’re badly designed, the negative impacts can be incredibly widespread. This gentle introduction shows you how to use important theoretical results to create good database designs.
Towards Federation 2001
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Author : National Library of Australia
language : en
Publisher: National Library Australia
Release Date : 1993
Towards Federation 2001 written by National Library of Australia and has been published by National Library Australia this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Computers categories.
Collection of papers from the 'Towards Federation 2001' conference, held in Canberra on 23-26 March 1992 and attended by 140 participants from libraries nationwide. Includes the final report and resolutions along with agenda, working and background papers. Topics addressed include access to information by particular groups such as the Aboriginal community and the disabled, and preservation of material. Refers to a range of types of documentation such as cartographic material, microforms, machine-readable records, theses, and oral history and folklore.
Dialect Writing And The North Of England
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Author : Honeybone Patrick Honeybone
language : en
Publisher: Edinburgh University Press
Release Date : 2020-09-04
Dialect Writing And The North Of England written by Honeybone Patrick Honeybone and has been published by Edinburgh University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-09-04 with Language Arts & Disciplines categories.
Analysing examples from 18th century literary texts through to 21st century social media, this is the first comprehensive collection to explore dialect writing in the North of England. The book also considers broad questions about dialect writing in general: What is it? Who does it? What types of dialect writing exist? How can linguists interpret it?Bringing together a wide range of contributors, the book investigates everything from the cultural positioning and impact of dialect writing to the mechanics of how authors produce dialect spellings (and what this can tell us about the structure of the dialects represented). The book features a number of case studies, focusing on dialect writing from all over the North of England, considering a wide range of types of text, including dialect poetry, translations into dialect, letters, tweets, direct speech in novels, humorous localised volumes, written reports of conversations and cartoons in local newspapers.
Professional Feature Writing
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Author : Bruce Garrison
language : en
Publisher: Routledge
Release Date : 2014-04-04
Professional Feature Writing written by Bruce Garrison and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-04-04 with Language Arts & Disciplines categories.
The new edition of this successful text gives advanced writers and reporters a thorough look at newspaper, magazine, and newsletter feature writing. It includes computer-based research tools and a discussion of online publications and resources. This edition emphasizes three primary aspects of feature writing: *introduction and writing skills--the basics, *article types, and *the collegiate and professional writing life. Readers learn from the narrative, from the advice of professionals, and by example. Each chapter contains excerpts and complete articles from some of the nation's leading publications to illustrate points made in the text.
Russian Nationalism And Ethnic Violence
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Author : Richard Arnold
language : en
Publisher: Routledge
Release Date : 2016-06-10
Russian Nationalism And Ethnic Violence written by Richard Arnold and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-06-10 with Social Science categories.
Nationalism is now the dominant narrative in Russian politics, and one with genuine popularity in society. Russian Nationalism and Ethnic Violence is a theoretical and empirical study which seeks to break the concept of "ethnic violence" into distinguishable types, examining the key question of why violence within the same conflict takes different forms at certain times and providing empirical insight into the politics of one of the most important countries in the world today. Theoretically, the work promises to bring the content of ethnic identity back into explanations of ethnic violence, with concepts from social theory, and empirical and qualitative analysis of databases, newspaper reports, human rights reports, social media, and ethnographic interviews. It sets out a new typology of ethnic violence, studied against examples of neo-Nazi attacks, Cossack violence against Meskhetian Turks, and Russian race riots. Russian Nationalism and Ethnic Violence brings hate crimes in Russia into the study of ethnic violence and examines the social undercurrents that have led to Putin’s embrace of nationalism. It adds to the growing body of English language scholarship on Russia’s nationalist turn in the post-Cold War era, and will be essential reading for anyone seeking to understand not only why different forms of ethnic violence occur, but also the potential trajectory of Russian politics in the next 20 years.