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Keeping your skills current in today's world is becoming increasingly challenging. There are too many new technologies being developed, and little time to learn them all. The DB2® on Campus Book Series has been developed to minimize the time and effort required to learn many of these new technologies. This book helps new database professionals understand database concepts with the right blend of breadth and depth of information.
282 p dtu 11/12/2012 204 2
Từ khóa: Database Fundamentals, cơ sở dữ liệu, information models, mô hình thông tin, relational data models, mô hình dữ liệu
Performance of Fractal-Tree Databases
Insertion bottlenecks lie at the heart of database and file-system innovations, best practices, and system workarounds. Most databases and file systems are based on B-tree data structures, and suffer from the performance cliffs and unpredictable run times of B-trees. In this talk, we introduce the Fractal Tree data structure and explain how it works and how it provides dramatically improved performance in both theory and in practice. Although...
52 p dtu 14/10/2012 250 3
Từ khóa: Performance of fractal tree databases, information technology, B-trees are Fast at Sequential Inserts, Algorithmic Performance Model, Fractal Tree Inserts (and Deletes), Inserts into Prototype Fractal Tree, Michael A. Bender
Shadow Theory: Data Model Design for Data Integration
Shadow Theory: Data Model Design for Data Integration Jason T. Liu* (Draft. Date:9/12/2012) For data integration in information ecosystems, semantic heterogeneity is a known difficulty. In this paper, we propose Shadow Theory as the philosophical foundation to address this issue. It is based on the notion of shadows in Plato's Allegory of the Cave. What we can observe are just shadows, and meanings of shadows are mental entities that only...
85 p dtu 28/09/2012 251 1
Từ khóa: information ecosystems, data integration, Shadow Theory, six design principles, Data Model Design for Data Integration, Shadow Theory: Data Model Design for Data Integration
Fundamentals of relational database management systems
Information is a valuable resource to an organization. Computer software provides an efficient means of processing information, and database systems are becoming increasingly common means by which it is possible to store and retrieve information in an effective manner. This book provides comprehensive coverage of fundamentals of database management system. This book is for those who wish a better understanding of relational data modeling, its...
362 p dtu 22/09/2012 220 4
Từ khóa: cơ sở dữ liệu, hệ quản trị cơ sở dữ liệu, relational database, management systems, quản trị máy tính, computer software, processing information, relational data model