Category Archives: Code
JDBC Providers Release
I’ve put together a release of the JDBC Providers at berlios. This packages up recent bug fixes and the separation of Java and SQL code which makes it easier to support other DB vendors. Meanwhile Søren and Mikkel are working … Continue reading
Reconstituted XML Schema Graphs
The paper Analysis of XML schema usage provides a glimpse at some interesting data for a group of schemas that the authors analyzed. Unfortunately, it’s only a glimpse as the data is not provided and the summarizing graphs are generally … Continue reading
Math Challenges Done
I finished the last of the mathschallenge.net math programming problems. Actually, it’s a temporary milestone since new problems are added every few weeks. At right is a graph of problems started per day with a LOESS smoother applied. The data … Continue reading
Sudoku Math Challenge
I’m still going through the list of Maths Challenges. They’re generally getting harder, but I thought I would catch a break on #96, “Devise an algorithm for solving Su Doku puzzles“. You have to solve a set of 50 sudoku … Continue reading
JDBC Providers on BerliOS
Søren Berg Glasius has created a JDBC Providers project on BerliOS, which is something like SourceForge. We’re working on making it easier to run the providers on different databases. It already supported MySQL, and he’s adding Sybase. The idea is … Continue reading
Addictive Maths Challenges
For the past few weeks, I’ve been addicted to the math programming problems at mathschallenge.net. You have to answer a math question that usually requires writing a little program to solve, such as “What is the sum of the digits … Continue reading
JDBC Providers for JSPWiki 2.3.72
The WikiPageProvider interface for JSPWiki has changed again with version 2.3.72, so I’ve updated the JDBC providers which I sort of maintain. 2.3.72 is still in alpha, and I’m not familiar with the new authentication features, which may be limiting … Continue reading