This book provides a brief background in logic and introduces the concept of GQs, and then develops a query language based on GQs. Using Query Language with Generalized Quantifiers, the reader explores the efficient implementation of the concept, always a primary consideration in databases. This professional book also includes several extensions for use with documents employing question and answer techniques.
Designed for practitioners and researchers within the database management field; also suitable for advanced-level students in computer science.
Access to Mobile Services provides an in-depth survey of wireless data access and motivates the need to treat mobile services differently. A wireless adaptation of Service Oriented Architecture (SOA) is also covered.
Designed for researchers and practitioners who work in the general area of mobile services, this book is also suitable for advanced-level students in computer science.
Michael P. Papazoglou, Tilburg University, The Netherlands
Fabio Casati, University of Trento, Italy
Object Relationship Notation (ORN) for Database Applications: Enhancing the Modeling and Implementation of Associations shows how ORN can be used in UML class diagrams & database definition languages (DDLs) to better model & implement relationships & thus more productively develop database applications. For the database developer, it presents many examples of relationships modeled using ORN-extended class diagrams & shows how these relationships are easily mapped to an ORN-extended SQL or Object DDL. For the DBMS developer, it presents the specifications & algorithms needed to implement ORN in a relational and object DBMS.
This book also describes tools that can be downloaded or accessed via the Web. These tools allow databases to be modeled using ORN and implemented using automatic code generation that adds ORN support to Microsoft SQL Server and Progress Object Store.
The CWNA: Certified Wireless Network Administrator OfficialStudy Guide: Exam CWNA-106 is the officially endorsed CWNA testprep for the leading wireless certification. Expert authors andCWNEs David D. Coleman and David A. Westcott guide readers throughthe skills and concepts candidates need to know for the exam, usinghands-on methods to convey an in-depth understanding of wirelessnetwork administration. Readers should have a basic knowledge ofRadio Frequency behavior, experience with WLAN hardware peripheralsand protocols, and an interest in designing, installing, andmanaging wireless networks.
Wireless technology is taking over the tech industry, and thedemand for competent, certified professionals is far outpacing thesupply. A CWNA certification denotes advanced-level proficiency inthe field, with a complete understanding of wireless LANcomponents, features, and function—but the only way to passthe exam is to truly understand the material, not just the talkingpoints. The CWNA: Certified Wireless Network AdministratorOfficial Study Guide thoroughly covers each exam objective, andincludes review questions, assessment tests, and exercises to testyour skills. Topics include:Radio Frequency technologies, regulations, and standards802.11 protocolsNetwork implementation and security802.11 RF site surveying
Readers also get access to a suite of study tools including anelectronic test engine with hundreds or practice test questions,electronic flashcards, exercise peripherals, and industry WhitePapers, which serve as valuable backup references. In preparing forthe CWNA-106 exam, the ideal study guide should cover all of theexam topics in depth—CWNA: Certified Wireless NetworkAdministrator Official Study Guide does just that, making it anexcellent, comprehensive study guide.