Fifty Years of Relational, and Other Database Writings

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Author :
Publisher : Technics Publications
ISBN 13 : 1634628349
Total Pages : 277 pages
Book Rating : 4.6/5 (346 download)

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Book Synopsis Fifty Years of Relational, and Other Database Writings by : C.J. Date

Download or read book Fifty Years of Relational, and Other Database Writings written by C.J. Date and published by Technics Publications. This book was released on with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Joe Celko's SQL for Smarties

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Author :
Publisher : Elsevier
ISBN 13 : 0123820235
Total Pages : 817 pages
Book Rating : 4.1/5 (238 download)

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Book Synopsis Joe Celko's SQL for Smarties by : Joe Celko

Download or read book Joe Celko's SQL for Smarties written by Joe Celko and published by Elsevier. This book was released on 2010-11-22 with total page 817 pages. Available in PDF, EPUB and Kindle. Book excerpt: Joe Celkos SQL for Smarties: Advanced SQL Programming offers tips and techniques in advanced programming. This book is the fourth edition and it consists of 39 chapters, starting with a comparison between databases and file systems. It covers transactions and currency control, schema level objects, locating data and schema numbers, base tables, and auxiliary tables. Furthermore, procedural, semi-procedural, and declarative programming are explored in this book. The book also presents the different normal forms in database normalization, including the first, second, third, fourth, fifth, elementary key, domain-key, and Boyce-Codd normal forms. It also offers practical hints for normalization and denormalization. The book discusses different data types, such as the numeric, temporal and character data types; the different predicates; and the simple and advanced SELECT statements. In addition, the book presents virtual tables, and it discusses data partitions in queries; grouping operations; simple aggregate functions; and descriptive statistics, matrices and graphs in SQL. The book concludes with a discussion about optimizing SQL. It will be of great value to SQL programmers. - Expert advice from a noted SQL authority and award-winning columnist who has given ten years service to the ANSI SQL standards committee - Teaches scores of advanced techniques that can be used with any product, in any SQL environment, whether it is an SQL 92 or SQL 2008 environment - Offers tips for working around deficiencies and gives insight into real-world challenges

Temporal Data & the Relational Model

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Author :
Publisher : Morgan Kaufmann
ISBN 13 : 1558608559
Total Pages : 449 pages
Book Rating : 4.5/5 (586 download)

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Book Synopsis Temporal Data & the Relational Model by : C.J. Date

Download or read book Temporal Data & the Relational Model written by C.J. Date and published by Morgan Kaufmann. This book was released on 2003 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review of relational concepts -- An overview of Tutorial D -- Time and the database -- What is the problem? -- Intervals -- Operators on intervals -- The EXPAND and COLLAPSE operators -- The PACK and UNPACK operators -- Generalizing the relational operators -- Database design -- Integrity constraints 1 : candidate keys and related constraints -- Integrity constraints 2 : general constraints -- Database queries -- Database updates -- Stated times and logged times -- Point and interval types revisited.

The Database Relational Model

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Author :
Publisher : Addison Wesley
ISBN 13 :
Total Pages : 172 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis The Database Relational Model by : C. J. Date

Download or read book The Database Relational Model written by C. J. Date and published by Addison Wesley. This book was released on 2001 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Database Relational Model: A Retrospective Review and Analysis is a retrospective of E.F. Codd's original ideas in which C.J. Date revisits the original papers, highlights their critical contributions to the basis of relational database management systems, and discusses the current day applications of these ideas. Codd's relational model, first presented to the world in a series of research papers from 1969 to 1979, was at the time revolutionary. More than 30 years later, however, it seems that the database community in general has come to regard the relational model as somewhat passe and no longer relevant, even though the entire database industry is founded on that model. Two factors that might explain this are that several of Codd's original papers have since become hard to find, and some of his writings were somewhat difficult to read and understand. This book aims to clearly evaluate Codd's original ideas and relate them to today's database society.

Database Explorations

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Publisher : Trafford Publishing
ISBN 13 : 1426937237
Total Pages : 551 pages
Book Rating : 4.4/5 (269 download)

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Book Synopsis Database Explorations by : C. J. Date

Download or read book Database Explorations written by C. J. Date and published by Trafford Publishing. This book was released on 2010-07 with total page 551 pages. Available in PDF, EPUB and Kindle. Book excerpt: A note from the authors: Dear Reader: "Database is boring." That sentiment is heard all too widely these days. But it's so wrong! The database field is full of important problems still to be solved and interesting issues still to be examined - and some of those problems and issues are explored in this book. Between us, we have nearly 80 years experience in this field, and we're still actively researching, exploring, and learning, as well as helping others do the same. The present book is the latest in a series devoted to these goals; using "The Third Manifesto" (a detailed proposal for the future of database technology) as a foundation, it reports on some of our most recent investigations in this field. Among many other things, it includes the most recent version of "The Third Manifesto" itself; specifications for a conforming language called Tutorial D; and a detailed proposal for a model of type inheritance. Other significant features include: - Extending the foreign key concept - Simplifying queries using image relations - Closer looks at logic and relational algebra - Suggested approaches to "missing information" - Responses to certain "Manifesto" criticisms - Clarifying aspects of normalization The tone of the book overall is naturally somewhat serious, but there are moments of light relief as well. We hope you enjoy it. C.J. Date and Hugh Darwen

E. F. Codd and Relational Theory, Revised Edition

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Author :
Publisher : Technics Publications
ISBN 13 : 1634629302
Total Pages : 307 pages
Book Rating : 4.6/5 (346 download)

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Book Synopsis E. F. Codd and Relational Theory, Revised Edition by : C. J. Date

Download or read book E. F. Codd and Relational Theory, Revised Edition written by C. J. Date and published by Technics Publications. This book was released on with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

View Updating and Relational Theory

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Author :
Publisher : "O'Reilly Media, Inc."
ISBN 13 : 1449357849
Total Pages : 263 pages
Book Rating : 4.4/5 (493 download)

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Book Synopsis View Updating and Relational Theory by : Chris Date

Download or read book View Updating and Relational Theory written by Chris Date and published by "O'Reilly Media, Inc.". This book was released on 2013 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: Views are virtual tables. That means they should be updatable, just as "real" or base tables are. In fact, view updatability isn’t just desirable, it’s crucial, for practical reasons as well as theoretical ones. But view updating has always been a controversial topic. Ever since the relational model first appeared, there has been widespread skepticism as to whether (in general) view updating is even possible. In stark contrast to this conventional wisdom, this book shows how views, just like base tables, can always be updated (so long as the updates don’t violate any integrity constraints). More generally, it shows how updating always ought to work, regardless of whether the target is a base table or a view. The proposed scheme is 100% consistent with the relational model, but rather different from the way updating works in SQL products today. This book can: Help database products improve in the future Help with a "roll your own" implementation, absent such product improvements Make you aware of the crucial role of predicates and constraints Show you how relational products are really supposed to behave Anyone with a professional interest in the relational model, relational technology, or database systems in general can benefit from this book.

Date on Database

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Author :
Publisher : Apress
ISBN 13 : 1430203498
Total Pages : 569 pages
Book Rating : 4.4/5 (32 download)

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Book Synopsis Date on Database by : Christopher Date

Download or read book Date on Database written by Christopher Date and published by Apress. This book was released on 2007-03-01 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt: C. J. Date is one of the founding fathers of the relational database field. Many of today’s seasoned database professionals "grew up" on Date’s writings. Those same professionals, along with other serious database students and practitioners, form the core audience for Date’s ongoing writing efforts. Date on Database: Writings 2000-2006 is a compilation of Date’s most significant articles and papers over the past seven years. It gives readers a one-stop place in which to find Date’s latest thinking on relational technology. Many papers are not easily found outside this book.

SQL and Relational Theory

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Author :
Publisher : "O'Reilly Media, Inc."
ISBN 13 : 1449319742
Total Pages : 447 pages
Book Rating : 4.4/5 (493 download)

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Book Synopsis SQL and Relational Theory by : C.J. Date

Download or read book SQL and Relational Theory written by C.J. Date and published by "O'Reilly Media, Inc.". This book was released on 2011-12-16 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: SQL is full of difficulties and traps for the unwary. You can avoid them if you understand relational theory, but only if you know how to put the theory into practice. In this insightful book, author C.J. Date explains relational theory in depth, and demonstrates through numerous examples and exercises how you can apply it directly to your use of SQL. This second edition includes new material on recursive queries, “missing information” without nulls, new update operators, and topics such as aggregate operators, grouping and ungrouping, and view updating. If you have a modest-to-advanced background in SQL, you’ll learn how to deal with a host of common SQL dilemmas. Why is proper column naming so important? Nulls in your database are causing you to get wrong answers. Why? What can you do about it? Is it possible to write an SQL query to find employees who have never been in the same department for more than six months at a time? SQL supports “quantified comparisons,” but they’re better avoided. Why? How do you avoid them? Constraints are crucially important, but most SQL products don’t support them properly. What can you do to resolve this situation? Database theory and practice have evolved since the relational model was developed more than 40 years ago. SQL and Relational Theory draws on decades of research to present the most up-to-date treatment of SQL available. C.J. Date has a stature that is unique within the database industry. A prolific writer well known for the bestselling textbook An Introduction to Database Systems (Addison-Wesley), he has an exceptionally clear style when writing about complex principles and theory.

E. F. Codd and Relational Theory: A Detailed Review and Analysis of CoddÕs Major Database Writings

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Author :
Publisher : Lulu.com
ISBN 13 : 1684705274
Total Pages : 306 pages
Book Rating : 4.6/5 (847 download)

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Book Synopsis E. F. Codd and Relational Theory: A Detailed Review and Analysis of CoddÕs Major Database Writings by : C. J. Date

Download or read book E. F. Codd and Relational Theory: A Detailed Review and Analysis of CoddÕs Major Database Writings written by C. J. Date and published by Lulu.com. This book was released on 2019-07-18 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 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 technical 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 Design and Relational Theory

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Publisher : "O'Reilly Media, Inc."
ISBN 13 : 1449330207
Total Pages : 277 pages
Book Rating : 4.4/5 (493 download)

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Book Synopsis Database Design and Relational Theory by : C.J. Date

Download or read book Database Design and Relational Theory written by C.J. Date and published by "O'Reilly Media, Inc.". This book was released on 2012-04-17 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Stating the Obvious, and Other Database Writings

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Author :
Publisher : Technics Publications
ISBN 13 : 1634629051
Total Pages : 208 pages
Book Rating : 4.6/5 (346 download)

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Book Synopsis Stating the Obvious, and Other Database Writings by : C. J. Date

Download or read book Stating the Obvious, and Other Database Writings written by C. J. Date and published by Technics Publications. This book was released on with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Logic and Relational Theory

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Author :
Publisher : Technics Publications
ISBN 13 : 1634628772
Total Pages : 358 pages
Book Rating : 4.6/5 (346 download)

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Book Synopsis Logic and Relational Theory by : C. J. Date

Download or read book Logic and Relational Theory written by C. J. Date and published by Technics Publications. This book was released on 2020-06-06 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Journal of Object-oriented Programming

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Author :
Publisher :
ISBN 13 :
Total Pages : 892 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Journal of Object-oriented Programming by :

Download or read book Journal of Object-oriented Programming written by and published by . This book was released on 1998 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Database in Depth

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Publisher : "O'Reilly Media, Inc."
ISBN 13 : 0596100124
Total Pages : 234 pages
Book Rating : 4.5/5 (961 download)

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Book Synopsis Database in Depth by : C.J. Date

Download or read book Database in Depth written by C.J. Date and published by "O'Reilly Media, Inc.". This book was released on 2005-05-05 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: This concise guide sheds light on the principles behind the relational model, which underlies all database products in wide use today. It goes beyond the hype to give you a clear view of the technology -- a view that's not influenced by any vendor or product. Suitable for experienced database developers and designers.

Logic and Databases

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

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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.

The Writers Directory

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Author :
Publisher :
ISBN 13 :
Total Pages : 570 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis The Writers Directory by :

Download or read book The Writers Directory written by and published by . This book was released on 2013 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: