Download or read book Incomplete Data and Data Dependencies in Relational Databases written by Sergio Greco and published by Springer Nature. This book was released on 2022-06-01 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: The chase has long been used as a central tool to analyze dependencies and their effect on queries. It has been applied to different relevant problems in database theory such as query optimization, query containment and equivalence, dependency implication, and database schema design. Recent years have seen a renewed interest in the chase as an important tool in several database applications, such as data exchange and integration, query answering in incomplete data, and many others. It is well known that the chase algorithm might be non-terminating and thus, in order for it to find practical applicability, it is crucial to identify cases where its termination is guaranteed. Another important aspect to consider when dealing with the chase is that it can introduce null values into the database, thereby leading to incomplete data. Thus, in several scenarios where the chase is used the problem of dealing with data dependencies and incomplete data arises. This book discusses fundamental issues concerning data dependencies and incomplete data with a particular focus on the chase and its applications in different database areas. We report recent results about the crucial issue of identifying conditions that guarantee the chase termination. Different database applications where the chase is a central tool are discussed with particular attention devoted to query answering in the presence of data dependencies and database schema design. Table of Contents: Introduction / Relational Databases / Incomplete Databases / The Chase Algorithm / Chase Termination / Data Dependencies and Normal Forms / Universal Repairs / Chase and Database Applications

Download or read book Dependencies in Relational Databases written by Bernhard Thalheim and published by Vieweg+teubner Verlag. This book was released on 1991 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fuzzy Relational Calculus written by Ketty Peeva and published by World Scientific. This book was released on 2004 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines fuzzy relational calculus theory with applications in various engineering subjects. The scope of the text covers unified and exact methods with algorithms for direct and inverse problem resolution in fuzzy relational calculus. Extensive engineering applications of fuzzy relation compositions and fuzzy linear systems (linear, relational and intuitionistic) are discussed. Some examples of such applications include solutions of equivalence, reduction and minimization problems in fuzzy machines, pattern recognition in fuzzy languages, optimization and inference engines in textile and chemical engineering, etc. A comprehensive overview of the authors' original work in fuzzy relational calculus is also provided in each chapter.The attached CD-Rom contains a toolbox with many functions for fuzzy calculations, together with an original algorithm for inverse problem resolution in MATLAB. This book is also suitable for use as a textbook in related courses at advanced undergraduate and graduate levels.

Download or read book A Guided Tour of Relational Databases and Beyond written by Mark Levene and published by Springer Science & Business Media. This book was released on 2012-09-18 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: Addressing important extensions of the relational database model, including deductive, temporal, and object-oriented databases, this book provides an overview of database modeling with the Entity-Relationship (ER) model and the relational model. The book focuses on the primary achievements in relational database theory, including query languages, integrity constraints, database design, computable queries, and concurrency control. This reference will shed light on the ideas underlying relational database systems and the problems that confront database designers and researchers.

Download or read book Foundations of Data Exchange written by Marcelo Arenas and published by Cambridge University Press. This book was released on 2014-03-06 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a summary of the key developments of a decade of research into the area of data exchange.

Download or read book Proceedings of the Third International Conference on Data and Knowledge Bases written by C. Beeri and published by Morgan Kaufmann. This book was released on 2014-05-12 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Third International Conference on Data and Knowledge Bases: Improving Usability and Responsiveness compiles papers presented at the Third International Conference on Data and Knowledge Bases held in Jerusalem, Israel on June 28-30, 1988. This book discusses the management system for graph-like documents, selection of processing strategies for different recursive queries, and supporting concurrent access to facts in logic programs. The design considerations for a Prolog database engine, experience with the domain algebra, and two level transaction management in a multiprocessor database machine are also described. This publication likewise covers the non-deterministic choice in Datalog and locally balanced compact Trie Hashing. This compilation is a good source for researchers and specialists of disciplines related to computer science.

Download or read book eBook Database Systems Concepts 6e written by SILBERSCHATZ and published by McGraw Hill. This book was released on 2010-06-16 with total page 1376 pages. Available in PDF, EPUB and Kindle. Book excerpt: eBook: Database Systems Concepts 6e

Download or read book Encyclopedia of Database Technologies and Applications written by Rivero, Laura C. and published by IGI Global. This book was released on 2005-06-30 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Addresses the evolution of database management, technologies and applications along with the progress and endeavors of new research areas."--P. xiii.

Download or read book Database Management System DBMS A Practical Approach written by Rajiv Chopra and published by S. Chand Publishing. This book was released on 2010 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many books on Database Management Systems (DBMS) are available in the market, they are incomplete very formal and dry. My attempt is to make DBMS very simple so that a student feels as if the teacher is sitting behind him and guiding him. This text is bolstered with many examples and Case Studies. In this book, the experiments are also included which are to be performed in DBMS lab. Every effort has been made to alleviate the treatment of the book for easy flow of understanding of the students as well as the professors alike. This textbook of DBMS for all graduate and post-graduate programmes of Delhi University, GGSIPU, Rajiv Gandhi Technical University, UPTU, WBTU, BPUT, PTU and so on. The salient features of this book are: - 1. Multiple Choice Questions 2. Conceptual Short Questions 3. Important Points are highlighted / Bold faced. 4. Very lucid and simplified approach 5.Bolstered with numerous examples and CASE Studies 6. Experiments based on SQL incorporated. 7. DBMS Projects added Question Papers of various universities are also included.

Download or read book Incomplete Information Rough Set Analysis written by Ewa Orlowska and published by Physica. This book was released on 2013-03-14 with total page 615 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1982, Professor Pawlak published his seminal paper on what he called "rough sets" - a work which opened a new direction in the development of theories of incomplete information. Today, a decade and a half later, the theory of rough sets has evolved into a far-reaching methodology for dealing with a wide variety of issues centering on incompleteness and imprecision of information - issues which playa key role in the conception and design of intelligent information systems. "Incomplete Information: Rough Set Analysis" - or RSA for short - presents an up-to-date and highly authoritative account of the current status of the basic theory, its many extensions and wide-ranging applications. Edited by Professor Ewa Orlowska, one of the leading contributors to the theory of rough sets, RSA is a collection of nineteen well-integrated chapters authored by experts in rough set theory and related fields. A common thread that runs through these chapters ties the concept of incompleteness of information to those of indiscernibility and similarity.

Download or read book Database Machines written by A. K. Sood and published by Springer Science & Business Media. This book was released on 2013-11-09 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume consists of a collection of 28 papers presented at the NATO Advanced Study Institute held July 14-27, 1985 in the beautiful resort at Les Arcs, France. The director of this ASI was A. K. Sood and A. H. Qureshi was the co-director. Since its introduction in the early 1970s the relational data model has been widely accepted. Several research and industrial efforts are being undertaken to develop special purpose database machines to implement the relational model. In addition, database machines are being explored for applications such as image processing and information retrieval. In this NATO-ASI the lecturers discussed special purpose database machine architectures from the viewpoint of architecture and hardware detail, software, user needs, theoretical framework and applications. The papers presented were of two types - regular papers and short papers. The research in database machines is being conducted in several countries. This fact is under scored when it is noted that papers in this volume are authored by researchers in France, Germany, Italy, Japan, Portugal, Turkey, U.K. and U.S.A. The first paper discusses the experience and applications of users with a commercially available database machine. In the following eight papers the characteristics of six database machines are discussed. The second, third and fourth papers deal with the RDBM project at the Technical University of Braunschweig (Germany). Zeidler discusses the design objectives, architecture and system design of RDBM. Teich presents the hardware utilized for sorting.

Download or read book Provenance and Annotation of Data and Processes written by Khalid Belhajjame and published by Springer. This book was released on 2018-09-05 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 7th International Provenance and Annotation Workshop, IPAW 2018, held in London, UK, in July 2018. The 12 revised full papers, 19 poster papers, and 2 demonstration papers presented were carefully reviewed and selected from 50 submissions. The papers feature a variety of provenance-related topics ranging from the capture and inference of provenance to its use and application.They are organized in topical sections on reproducibility; modeling, simulating and capturing provenance; PROV extensions; scientific workflows; applications; and system demonstrations.

Download or read book Database Management Systems written by ITL ESL and published by Pearson Education India. This book was released on 2012 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Database Management Systems is designed as quick reference guide for important undergraduate computer courses. The organized and accessible format of this book allows students to learn the important concepts in an easy-to-understand, question-and-a

Download or read book Johan van Benthem on Logic and Information Dynamics written by Alexandru Baltag and published by Springer. This book was released on 2014-08-27 with total page 1072 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Database Systems written by S. K. Singh and published by Pearson Education India. This book was released on 2011 with total page 954 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of this bestselling title is a perfect blend of theoretical knowledge and practical application. It progresses gradually from basic to advance concepts in database management systems, with numerous solved exercises to make learning easier and interesting. New to this edition are discussions on more commercial database management systems.

Download or read book Database Programming Languages written by Marcelo Arenas and published by Springer. This book was released on 2007-10-05 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the thoroughly refereed post-proceedings of the 11th International Symposium on Database Programming Languages, DBPL 2007, held in conjunction with VLDB 2007. The 16 revised full papers presented together with one invited lecture were carefully selected during two rounds of reviewing. The papers are organized in topical sections on algorithms, XML query languages, inconsistency handling, data provenance, emerging data models, and type checking.

Download or read book Hands On DATABASE 2000 MCQ written by Harry Chaudhary. and published by STCD COMPANY. This book was released on 2018-04-08 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our 2000+ Database Management System questions and answers focuses on all areas of Database Management System subject covering 100+ topics in Database Management System. These topics are chosen from a collection of most authoritative and best reference books on Database Management System. One should spend 1 hour daily for 2-3 months to learn and assimilate Database Management System comprehensively. This way of systematic learning will prepare anyone easily towards Database Management System interviews, online tests, examinations and certifications. Highlights Ø 2000+ Multiple Choice Questions & Answers in Database Management System with explanations Ø Lots of MCQs with Database Management System code/programming snippet and its output Ø Every MCQ set focuses on a specific topic in Database Management System Who should Practice these Database Management System Questions? Ø Anyone wishing to sharpen their skills on Database Management System programming language Ø Anyone preparing for aptitude test in Database Management System (both objective type and coding written test) Ø Anyone preparing for interviews (campus/off-campus interviews, walk-in interview and company interviews) Ø Anyone preparing for entrance examinations and other competitive examinations Ø All – Experienced, Freshers and Students Randomly DBMS 600+ MCQ Set Questions & Answers 7 Randomly DBMS 100+ MCQ Set Questions & Answers 85 Relational Database and Database Schema MCQ Set 99 Keys. 102 Relational Query Operations and Relational Operators 105 SQL Basics and SQL Data Definition 108 SQL Queries 111 Basic SQL Operations. 115 Set Operations 119 Null Values Operations 122 Aggregate Functions and Nested Subqueries – 1 125 Aggregate Functions and Nested Subqueries – 2 128 Modification of Database 131 Join Expressions 135 Database Questions And Answers – Views 138 Database Questions And Answers Transactions 142 Integrity Constraints 145 SQL Data Types and Schemas 148 Authorizations 151 Access SQL from a Programming Language 154 Functions and Procedures 157 Triggers 161 Recursive Queries and Aggregation Features. 164 OLAP-(online analytical processing) 167 Relational Algebra 170 Tuple Relational Calculus & Domain Relational Calculus 173 The Entity-Relationship Model 176 Constraints 179 Entity-Relationship Diagrams 182 Reduction to Relational Schemas 185 Entity-Relationship Design Issues 189 Extended E-R Features 192 Querying Database Part-1 DDL 195 Querying Database Part-2 DML 199 Atomic Domains 203 Normal Forms 206 Functional-Dependency Theory 209 Algorithms for Decomposition 213 Multivalued Dependencies 216 Database Design Process 219 Application Programs and User Interfaces- 222 Web Fundamentals 225 Servlets and JSP 228 Application Architectures 231 Rapid Application Development 234 Application Performance 237 Application Security 240 Encryption and Its Applications 243 Physical Storage Media 246 Magnetic Disk and Flash Storage 249 RAID 252 Tertiary Storage 255 File Organisations 258 Organization of Records in Files 261 Data-Dictionary Storage 264 Database Buffer 267 Ordered Indices 270 Hashing techniques 273 Ordered Indexing and Hashing 276 Bitmap Indices 279 Index Definition in SQL. 282 Query Processing 285 Selection Operation 288 Sorting 291 Join Operations 294 Evaluation of Expressions 297 Transformation of Relational Expressions 300 Estimating Statistics of Expression Results 303 Materialized Views 306 Advanced Query Optimization 310 Transaction Concept 313 A Simple Transaction Model 316 Storage Structure 319 Transaction Atomicity and Durability 322 Querying Database Part -3 325 Querying Database Part– 4 328 Querying Database Part– 5 331 Implementation of Isolation Levels 334 Transactions as SQL Statements 338 Lock-Based Protocols 341 Deadlocks 344 Multiple Granularity 347 Multiversion Schemes 350 Snapshot Isolation 353 Insertion Deletion Predicate Reads 356 Concurrency in Index Structures 361 Failure Classification 364 Recovery 367 Buffer Management 370 Failure with Nonvolatile Storage 376 ARIES 376 Lock Release and Undo Operations 379 Remote Backup Systems 382 Typical Mix DBMS MCQ's Set. 385-405