It's part of kdb http://kx.com/ http://kx.com/ , a rather fast and powerful database, which is written in a language called k. Here's an excellent introduction

It's part of kdb http://kx.com/ http://kx.com/ , a rather fast and powerful database, which is written in a language called k. Here's an excellent introduction to K: http://archive.vector.org.uk/art10010830 http://archive.vector.org.uk/art10010830 Most kdb users use Q though, which is something else.