Big time-series Data
Try it for free.
The 32-bit trial version of kdb+ is available for non-commercial and educational use — for example, for testing the software and learning the q programming language.
Download versions are available for Windows, Linux, Solaris, and OS X. They contain everything developers need to learn q and kdb+ from the associated tutorials at the Kx wiki, which also has a quick start guide to kdb+. (You must first agree to the terms of the kdb+ Software License Agreement, and may not use the software for production use.)