With the XQuery 1.0 standard, you finally have a tool that will make it much easier to search, extract and manipulate information from XML content stored in databases. This in-depth tutorial not only walks you through the XQuery specification, but also teaches you how to program with this widely anticipated query language.



XQuery is for query writers who have some knowledge of XML basics, but not necessarily advanced knowledge of XML-related technologies. It can be used both as a tutorial, by reading cover to cover, and as a reference, by using the comprehensive index and appendixes. Either way, you will find the background knowledge in namespaces, schemas, built-in types and regular expressions that is relevant to writing XML queries. This book provides:



A high-level overview and quick tour of XQuery

Information to write sophisticated queries, without being bogged down by the details of types, namespaces, and schemas

Advanced concepts for users who want to take advantage of modularity, namespaces, typing and schemas

Guidelines for working with specific types of data, such as numbers, strings, dates, URIs and processing instructions

A complete alphabetical reference to the built-in functions and types

You will also learn about XQuery's support for filtering, sorting, and grouping data, as well as how to use FLWOR expressions, XPath, and XQuery tools for extracting and combining information. With this book, you will discover how to apply all of these tools to a wide variety of data sources, and how to recombine information from multiple sources into a single final output result.



Whether you're coming from SQL, XSLT, or starting from scratch, this carefully paced tutorial takes you through the final 1.0 standard in detail.

Author(s): Matthew MacDonald
Publisher: MS Press
Year: Feb 2003
ISBN: 0735619336
Language: English
File type: CHM
Pages: 752
Size (for download): 5 MB


Make the jump to distributed application programming using the .NET Framework—and introduce a new level of performance, scalability, and security to your network and enterprise applications. Expert .NET developer Matthew MacDonald shares proven techniques for fully exploiting .NET Remoting, XML Web services, and other .NET technologies and integrating them into your real-world solutions. MacDonald digs into key .NET building blocks and architectural issues, explaining which features and designs will best serve your customized distributed application projects—and when to use them. Case studies with full code examples illustrate these practical techniques in action, as well as demonstrating their benefits and tradeoffs.

It's been roughly seven years since distributed application architecture first gained recognition in the business world. Back then, exciting new technologies such as COM/DCOM and CORBA/IIOP promised to revolutionize the way that large-scale, resource-intensive applications were built. Instead of trying to host a single monolithic application on a single computer, distributed architecture allowed software to be modeled as a group of objects communicating across different machines. Best of all, these machines no longer needed to be proprietary mainframes—instead, developers could use inexpensive servers running the MS Windows operating system. Increasing the overall throughput of the system was often as easy as just adding an extra computer to the mix.

All this has made distributed programming one of the most exciting and hotly pursued areas of software programming, but it hasn't made up for some critical stumbling blocks. Quite simply, distributed applications are complicated. Programming a distributed application on the Windows platform requires a solid understanding of MS's COM standard, its enterprise software and component services (such as SQL Server and COM+), and a healthy dose of painfully won experience. And no matter how skilled the programmer, a distributed programming project can quickly mushroom into a collection of versioning nightmares, interoperability headaches, and unexpected performance bottlenecks.

These problems are the key factors behind the creation of MS's .NET platform. MS .NET provides an entirely new model for creating components, communicating across computers, and accessing data—one that is optimized for distributed applications on every level. This framework still requires a healthy investment of developer time and a fairly steep learning curve for novice programmers. After the basics are mastered, however, .NET makes it dramatically easier to create truly scalable software systems.

This book explores distributed programming with .NET. It details the key .NET technologies you need to master and explains the best practices for distributed application architecture with .NET. Best of all, it shows you how the separate .NET technologies can all fit together.


TABLE OF CONTENT:
Chapter 01 - Understanding Distributed Architecture
Chapter 02 - .NET Components
Chapter 03 - Disconnected Data: The Universal Language
Chapter 04 - .NET Remoting: A More Durable DCOM
Chapter 05 - XML Web Services (RPC the Easy Way)
Chapter 06 - Threaded Clients (Responsive Interfaces)
Chapter 07 - Thread Pools and Services (Scalable Programming)
Chapter 08 - Messaging (Lightweight Communication)
Chapter 09 - COM+ (Component Services)
Chapter 10 - Enterprise Application Modeling
Chapter 11 - Advanced Remoting Techniques
Chapter 12 - Optimizing the Data Tier
Chapter 13 - Implementing Security
Chapter 14 - Monitoring, Logging, and Profiling
Chapter 15 - Deployment Strategies
Chapter 16 - Invoicer.NET Traveling Sales
Chapter 17 - Transact.NET Order Fulfillment
Chapter 18 - SuperCompute.NET Work Requests
Chapter 19 - MS Case Studies

XML for Bioinformatics aims to provide biologists, software engineers, and bioinformatics professionals with a comprehensive introduction to XML and current XML applications in bioinformatics. The book will assume no background in XML, and take readers from basic to intermediate XML concepts. Core topics will include: fundamentals of XML, creating XML grammars, web services via SOAP, and parsing XML documents in Perl and Java.

This is an excellent collection of XML best practices: essential reading for any developer using XML. This book will help you avoid common pitfalls and ensure your XML applications remain practical and interoperable for as long as possible.
If you want to become a more effective XML developer, you need this book. You will learn which tools to use when in order to write legible, extensible, maintainable and robust XML code:
- How do you write DTDs that are independent of namespace prefixes?
- What do parsers reliably report and what don't they?
- Which schema language is the right one for your job?
- Which API should you choose for maximum speed and minimum size?
- What can you do to ensure fast, reliable access to DTDs and schemas without making your document less portable?
- Is XML too verbose for your application?