Relational databases ebooks




















The book is intended for those studying relational databases as part of a degree course in Information Technology IT. Relational database theory, originally proposed by Edgar F. Codd in , is a topic in Computer Science. In the early part of his career, he was involved in DBMS development; from to , he was one of the chief architects of an IBM product called Business System 12, a product that faithfully embraced the principles of the relational model.

He was an active participant in the development of the international standard for SQL and related standards from to He was also a a tutor and course development consultant for the Open University from to Other than his books at Bookboon his publications have all been collaborative efforts with Chris Date, perhaps the best known and mostly highly acclaimed author in the field of relational databases:. Morgan Kaufmann, Addison-Wesley, Date, Relational Database Writings, PostgreSQL is the most comprehensive, in-depth, and easy-to-read guide to this award-winning database.

If you are a developer or an administrator, youll love the chapter that explores PostgreSQL performance. The authors explain how PostgreSQL stores data on disk and in memory and how to measure and influence the effectiveness of PostgreSQLs caching mechanisms. Youll also learn how PostgreSQL generates and evaluates execution plans. This practical, learn-by-doing tutorial delivers the guidance you need to transform and consolidate dataand build solutions that support your business intelligence needs.

Discover how to: Design and execute packages that transform data between files and relational databases Configure connection managers to access other data sources Create data flows that alter, split, match, and merge data Develop event-handlers and monitor package performance Encrypt sensitive information and control access to packages Customize script code to automate Control Flow and Data Flow tasks Debug, troubleshoot, and optimize packages CD features: All practice exercises Sample databases This book is a must read for anyone deploying BusinessObjects.

Whether you're just getting started developing with data or are a seasoned pro; whether you've read Mike's previous book or this is your first; whether you're happier letting someone else design your data or you love doing it yourself--this is the book for you.

Mike's ability to explain these concepts in a way that's not only clear, but fun, continues to amaze me. The second edition expands and improves on the original in so many ways. It is not only a good, clear read, but contains a remarkable quantity of clear, concise thinking on a very complex subject. It's a must for anyone interested in the subject of database design. Rubel, Performance Dynamics Associates "Mike's excellent guide to relational database design deserves a second edition.

I recommend it highly to all my readers. Database technology has advanced dramatically, the newest crop of database servers perform operations faster than anyone could have imagined six years ago, but none of these technological advances will help fix a bad database design, or capture data that you forgot to include!

When I need a refresher on the finer points of database design, this is the book I pick up. I do not think that there is a better testimony to the value of a book than that it gets used. For this reason I have wholeheartedly recommended to my peers and students that they utilize this book in their day-to-day development tasks. If you're just starting out building database applications, this book is a must-read cover to cover.

Expert designers will find Mike's approach fresh and enlightening and a source of great material for training others. With his many years of real-world experience designing relational databases, Michael shows you how to analyze and improve existing databases, implement keys, define table relationships and business rules, and create data views, resulting in data integrity, uniform access to data, and reduced data-entry errors.

Database Design for Mere Mortals TM , Second Edition, is a straightforward, platform-independent tutorial on the basic principles of relational database design. It provides a commonsense design methodology for developing databases that work. Database design expert Michael J.

Hernandez has expanded his best-selling first edition, maintaining its hands-on approach and accessibility while updating its coverage and including even more examples and illustrations.



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