Home | Amazing | Today | Tags | Publishers | Years | Account | Search 
Relational Databases and Knowledge Bases

Buy
A database management system (DBMS), or simply database system, is characterized by the data model it suports . The first DBMSs, designed in the 1960s, were based on hierarchical or network models and have been viewed as extensions of file systems in which interfile links are provided through pointers . The data manipulation languages of these systems are low level and require users to optimize the access to the data by carefully navigating in hierarchies or networks.

Since its inception in 1970, the relational data model has continued to gain wide acceptance among database researchers and practitioners . Unlike the hierarchical and network models, the relational model has a solid theoretical basis and provides simple and uniform representation for all data independent of any physical implementation . These advantages enabled the development of high-level data manipulation languages, freeing the user from data access optimization, and provided a solid basis for automating the database design process.

In the early 1980s, the first relational database systems apeared on the market, bringing definite advantages in terms of usability and end user productivity . Since then, their functional capabilities and performance have been significantly improved . Most relational DBMSs today suport an integrated set of fourth-generation programming language tools to increase end user productivity.

Most also provide extensive suport for distributed database management . The development of fourth-generation tools and distributed database management capabilities has been facilitated by the relational model .
(HTML tags aren't allowed.)

Access 2003 for Starters: The Missing Manual
Access 2003 for Starters: The Missing Manual

Maybe you got Access as part of Microsoft Office and wonder what it can do for you and your household; maybe you're a small business manager and don't have a techie on staff to train the office in Microsoft Access. Regardless, you want to quickly get your feet wet--but not get in over your head--and ...

Beginning Microsoft Excel 2010
Beginning Microsoft Excel 2010

Beginning Microsoft Excel 2010 is a practical, step-by-step guide to getting started with the world’s most widely used spreadsheet application. The book offers a hands-on approach to learning how to create and edit spreadsheets, use various calculation formulas, employ charts/graphs, and get work done efficiently.

...

A Statistical Guide for the Ethically Perplexed
A Statistical Guide for the Ethically Perplexed

For disciplines concerned with human well-being, such as medicine, psychology, and law, statistics must be used in accordance with standards for ethical practice. A Statistical Guide for the Ethically Perplexed illustrates the proper use of probabilistic and statistical reasoning in the behavioral, social, and biomedical...


R for Business Analytics
R for Business Analytics

R for Business Analytics looks at some of the most common tasks performed by business analysts and helps the user navigate the wealth of information in R and its 4000 packages.  With this information the reader can select the packages that can help process the analytical tasks with minimum effort and maximum usefulness. The use of...

Learning ASP.NET 3.5
Learning ASP.NET 3.5
With this book, you will learn how to create engaging and interactive web applications using the latest version of the world's most popular web development platform: ASP.NET with AJAX, built on the productivity-enhancing features of Visual Studio 2008. All you need to get started is a basic knowledge of HTML and a desire to produce professional...
Matrix Metalloproteinases (Biology of Extracellular Matrix)
Matrix Metalloproteinases (Biology of Extracellular Matrix)

The chapters in this book thoroughly cover the structure, regulation, and function of matrix metalloproteinases, and provide information on the latest strategies to inhibit enzyme activity. This work will be an indispensable reference tool for investigators with an interest in extracellular matrix biology, matrix turnover, enzymology and...

©2019 LearnIT (support@pdfchm.net) - Privacy Policy