Each chapter begins with an overview of an area of database functionality, followed by examples that provide context for that particular topic. Students begin their study of relational databases with the Relational Model and relational databases. The authors teach students how to work within a development environment through hands-on exercises. This book covers the fundamentals of database systems.
The key feature is the Logical Storage Structure LSS design methodology, which can be used to design optimal and cost effective databases by taking into account the access patterns of the data items, and yet achieving a uniform data representation that can be directly exploited by applications.
This book introduces the fundamental concepts necessary for designing, using, and implementing database systems and database applications. Our presentation stresses the fundamentals of database modeling and design, the languages and models provided by the database management systems, and database system implementation techniques.
The book is meant to be used as a textbook for a one- or two-semester course in database systems at the junior, senior, or graduate level, and as a reference book. The goal is to provide an in-depth and up-to-date presentation of the most important aspects of database systems and applications, and related technologies.
It is assumed that readers are familiar with elementary programming and data-structuring concepts and that they have had some exposure to the basics of computer organization. Shamkant B. Many of the designations by manufacturers and seller to distinguish their products are claimed as trademarks. Where those designations appear in this book, and the publisher was aware of a trademark claim, the designations.
The author and publisher of this book have used their best efforts in preparing this book. These efforts include. The author and. The author and publisher shall not be liable in any event for incidental or. All such. Whether express, implied or statutory, fitness for a particular purpose, title. Negligence or other tortious action, arising out of or in connection with the use or.
The documents and related graphics contained herein could include technical inaccuracies or typographical. Changes are periodically added to the information herein. To my wife Aruna for her love, support, and understanding and to Rohan, Maya, and Ayush for bringing so much joy into our lives S. Our presentation stresses the funda- mentals of database modeling and design, the languages and models provided by the database management systems, and database system implementation techniques.
The book is meant to be used as a textbook for a one- or two-semester course in database systems at the junior, senior, or graduate level, and as a reference book. Our goal is to provide an in-depth and up-to-date presentation of the most important aspects of database systems and applications, and related technologies.
We assume that readers are familiar with elementary programming and data-structuring con- cepts and that they have had some exposure to the basics of computer organization. A reorganization of the chapter ordering this was based on a survey of the instructors who use the textbook ; however, the book is still organized so that the individual instructor can choose to follow the new chapter ordering or choose a different ordering of chapters for example, follow the chapter order from the sixth edition when presenting the materials.
There are two new chapters on recent advances in database systems and big data processing; one new chapter Chapter 24 covers an introduction to the newer class of database systems known as NOSQL databases , and the other new chapter Chapter 25 covers technologies for processing big data , including MapReduce and Hadoop.
The chapter on query processing and optimization has been expanded and reorganized into two chapters; Chapter 18 focuses on strategies and algo- rithms for query processing whereas Chapter 19 focuses on query optimiza- tion techniques.
Many of the individual chapters have been updated to varying degrees to include newer techniques and methods; rather than discuss these enhancements here,. The following are key features of the book:. A dependency chart shown later in this preface to show which chapters depend on other earlier chapters; this can guide the instructor who wants to tailor the order of presentation of the chapters. There are some organizational changes in the seventh edition as well as improve- ment to the individual chapters.
The book is now divided into 12 parts as follows:. Part 1 Chapters 1 and 2 describes the basic introductory concepts neces- sary for a good understanding of database models, systems, and languages. Chapters 1 and 2 introduce databases, typical users, and DBMS concepts, terminology, and architecture, as well as a discussion of the progression of database technologies over time and a brief history of data models.
Part 2 Chapters 3 and 4 includes the presentation on entity-relationship modeling and database design; however, it is important to note that instruc- tors can cover the relational model chapters Chapters 5 through 8 before Chapters 3 and 4 if that is their preferred order of presenting the course materials.
In Chapter 3, the concepts of the Entity-Relationship ER model and ER diagrams are presented and used to illustrate conceptual database design.
Chapter 4 shows how the basic ER model can be extended to incorpo- rate additional modeling concepts such as subclasses, specialization, gener- alization, union types categories and inheritance, leading to the enhanced-ER EER data model and EER diagrams. Part 3 Chapters 5 through 8 includes a detailed presentation on relational databases and SQL with some additional new material in the SQL chapters to cover a few SQL constructs that were not in the previous edition.
Chapter 5. Chapter 6 describes some of the basic parts of the SQL standard for relational databases, including data definition, data modification opera- tions, and simple SQL queries. Chapter 7 presents more complex SQL que- ries, as well as the SQL concepts of triggers, assertions, views, and schema modification.
Chapter 8 describes the formal operations of the relational algebra and introduces the relational calculus. The material on SQL Chap- ters 6 and 7 is presented before our presentation on relational algebra and calculus in Chapter 8 to allow instructors to start SQL projects early in a course if they wish it is possible to cover Chapter 8 before Chapters 6 and 7 if the instructor desires this order.
Part 4 Chapters 10 and 11 are the chapters on database programming tech- niques; these chapters can be assigned as reading materials and augmented with materials on the particular language used in the course for program- ming projects much of this documentation is readily available on the Web.
Chapter 11 introduces Web database programming, using the PHP scripting language in our exam- ples, and includes new material that discusses Java technologies for Web database programming. Part 5 Chapters 12 and 13 covers the updated material on object-relational and object-oriented databases Chapter 12 and XML Chapter 13 ; both of these chapters now include a presentation of how the SQL standard incorpo- rates object concepts and XML concepts into more recent versions of the SQL standard.
They will be improving their knowledge and confidence as well as rank in exams and quizzes by taking participates. The Test Bank provides the efficient material useful for exams and quizzes. You are ready for test bank to purchased then download and customized to fit the requirements. Having a test bank clearly helps you to understand the subject matter better.
By buying the test bank user can efficiently interacts the entire syllabus in short format. It will gives the complete interface of actual test exam. There are so much opportunity for variety and newer or different ways of posting and thinking about questions.
0コメント