KDB Free for non commerial use

[Wallstyouth]

Under the terms of the Download Kdb+ Software License Agreement (http://kx.com/developers/software/noncomlicense.php) you may download a 32-bit copy of kdb+ for your personal use. Please see http://code.kx.com (http://code.kx.com/) for tutorials on using this software. Users of the download edition may also like to join the un-moderated forum hosted at Google Groups (http://groups.google.com/group/personal-kdbplus).
Kx Systems - Developers - Documentation (http://kx.com/developers/license2.php)

[alain]

Is this new? I haven't read the link but in the past, the free KDB edition was limited by capacity.

[Dave Haan]

While the kdb download isn't the full-fledged version, it provides more than enough to gain familiarity with the language Q, begotten by K and SQL. (K is a crunchy Lisp kernel with APL sugarcoating; a decade ago I was expert in it; now I'm familiarizing myself with Q [SQL is embedded, not just an add-on].)

kdb/Q currently has a strong presence in algorithmic stock trading, due to the tick history that kx compiled and supports (and to the embedded efficiency of their data retrieval).