(Johnson P. Thomas) One of the functions of XML is the storage of data. The technologies that dominate the market for data storage are prerelational and relational databases that manage traditional data types by numbers and text. But with the entry of XML into the market,we have some new products
Other News
Oracle Webserver – Valid Virtual Host Error
Here’s a common problem that is difficult to figure out. This began happenning early in the Release of Webserver around 1.0 and still happens in 4.0. I suspect the problem exists on all platforms as well. It usually happens after installation.
An Introduction to Database Models
(Frank Kalis) Consider this article a very basic introduction to an area in which countless multi-hundred paged books have been written during the last four decades. This article can not and does not intend to compete with any of these books, but rather tries to explain different database models in
Everything You Wanted to Know About DB2 Universal Database Processes
(Dwaine Snow and Raul F. Chong) Ever wonder what all those DB2 processes actually do? This article describes the processes that DB2 UDB uses on Linux, UNIX and Windows, discusses why you might need to understand these processes, and details their functions.
DB2 for z/OS Version 8 Online Schema Evolution
Many DB2 for z/OS DBAs, developers, and systems programmers are well aware of what you can alter with respect to the definition of a database object, and, just as important, what you cannot alter. At times, it may seem as though you can alter just about everything EXCEPT what you really want to chan
Introducing PyRXP
(Uche Ogbuji) PyRXP is a DTD validating XML parser developed by ReportLab. It is Python wrapper around RXP, a C parser developed by Richard Tobin and Henry Thompson of the Edinburgh Language Technology Group as the core of LT XML, “an integrated set of XML tools and a developers’ tool-kit, including
Always Available
(David A. Kelly) High availability—or the ability of a business and that business’s customers to use an application or a service at the appropriate time with the level of functionality they expect—is no longer just a key requirement of today’s business systems; it’s increasingly becoming the key req
Displaying Elapsed Time: The difference between two dates
If you ever need to display the number of hours, minutes and seconds between two events, this will help. This little package can be called once to record the start time, then later to display the elapsed time since the initial call. It has two modes of displaying the time, depending on whether the
A survey of XML standards: Part 2
(Uche Ogbuji) The world of XML is vast and growing, with a huge variety of standards and technologies that interact in complex ways. It can be difficult for beginners to navigate the most important aspects of XML, and for users to keep track of new entries and changes in the space. Uche Ogbuji conti
Combining RELAX NG and Schematron
(Eddie Robertsson) This article explains how to integrate two powerful XML schema languages, RELAX NG and Schematron. Embedding Schematron rules in RELAX NG is very simple because a RELAX NG validator ignores all elements not in the RELAX NG namespace (http://relaxng.org/ns/structure/1.0). This mean