Making sense of graph databases part 1 - When to use graph databases, and when not to

13 Feb 2016 Main article can be found here. Intuitively, you would answer… graphs, but a bit more detailed information by people that have done some research would be nice. The Graph Database Wikipedia article says surprisingly little about this issue (feb 2016)! It only lists a huge amount of databases. This indicates... View entire post

Making sense of graph databases

13 Feb 2016 Having worked with Virtuoso graph database for half a year I was excited to be given opportunity to try something new. Although my work with the database involved mainly querying with SPARQL and some graph modeling, it caught enough interest that I wanted to understand a bit more. My main... View entire post

Virtuoso SPARQL Replace Function Bug and Workaround

05 Jul 2015 Running the following SPARQL for replacing %c3%85 with the letter Å runs as expected select REPLACE("%c3%85-XYZ-%20%28-DEF-%29","%C3%85", "Å", 'i') where {} #Result: Å-XYZ-%20%28-DEF-%29 However, when using nested REPLACE statements with an outer replace having a regex with ., the replace function “jumps” back one character where the match is found :... View entire post