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web actions and messages

How does one define webactions or dispatchers for the kdb server?Additionally, how does one define a message handler for processcommunication?Thanks.

jksmith by New Contributor
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directory globbing

is it possible to glob a directory of csv files for importing into kx?Possibly merging the tables into one?

doubling is an interesting theory (see url below) but...

in Dennis Shasha's primer at chapter 9 we read:...This section assumes you have some some familiarity...I assume one some would be more handsome...:)...The promised link:http://adsabs.harvard.edu/abs/2006AIPC..839..236GFor those of you who can read f...

Paul1 by New Contributor
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A small typo from evolution of an empty representation

Going through Dennis Shasha's primer, in chapter 6 where thedifference function is defined, we can read:difference[c;d] /returns 0#` because there is no such elementBut according to my downloaded free version it is now:difference[c;d] /returns `symbo...

Paul1 by New Contributor
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Sql Server to KDB

Hi... I was wondering what the best would be to copy a sql serverdatabase to kdb+ one. I saw in the code.kx that there is a odbc.kfile but I dont seem to have that with evaluation edition.

Sliding window

Mime-Version: 1.0 (Apple Message framework v919.2)Subject: Sliding windowDate: Wed, 9 Apr 2008 12:48:47 +0100X-Mailer: Apple Mail (2.919.2)How do you implement a sliding window?Assume that you need to take a movingaverage over the last 10 quotes. You...

joelr1 by New Contributor
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Limitations On Non-Commercial Version

I'd like to confirm the limitations of the non-commercial version onwindows.>From what I can see: 1. There's no slaves 2. Work space size is limited to 2GigI've tried starting like this: q.exe -s4 -w4096But this seems to make no difference. For a sta...

different contexts for remote execution

Mime-Version: 1.0 (Apple Message framework v919.2)Subject: different contexts for remote executionDate: Mon, 7 Apr 2008 23:53:18 +0100X-Mailer: Apple Mail (2.919.2)assuming that h was a handleto a remote q, it seems thath (get;var) and h "var"execute...

joelr1 by New Contributor
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q vector math not much faster than serial erlang code?

Mime-Version: 1.0 (Apple Message framework v919.2)Subject: q vector math not much faster than serial erlang code?Date: Mon, 7 Apr 2008 11:33:59 +0100Cc: Zvi Avraham X-Mailer: Apple Mail (2.919.2)http://groups.google.com/group/erlang-questions/browse_...

joelr1 by New Contributor
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The perils of benchmarking

Mime-Version: 1.0 (Apple Message framework v919.2)Subject: The perils of benchmarkingDate: Sun, 6 Apr 2008 15:38:18 +0100X-Mailer: Apple Mail (2.919.2)Suppose we had a list of 10000000phone numbers and wanted to takejust the first 8 digits of each.We...

joelr1 by New Contributor
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Q development tools in Eclipse

hi,is there a limitation in KDB+ 2.4 2008.03.31 for socket connections?I am trying to set up an Eclipse debug config as described here:http://www.qkdt.org/gettingstarted.htmland getting :"could not connect to Q at localhost:1444"connection refusedwha...

sparse arrays

Mime-Version: 1.0 (Apple Message framework v919.2)Subject: sparse arraysDate: Sun, 6 Apr 2008 00:04:15 +0100X-Mailer: Apple Mail (2.919.2)What is the most efficient wayto implement sparse arrays in q? Thanks, Joel--wagerlabs.com

joelr1 by New Contributor
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bring the slaves back!

Subject: bring the slaves back!Date: Sat, 5 Apr 2008 23:54:51 +0100X-Mailer: Apple Mail (2.919.2)X-Google-Approved: simon.garland@gmail.com via web at 2008-04-06 04:49:38Multithreading is absent on Mac OSX and notas powerful as it could be otherwise ...

joelr1 by New Contributor
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Welcome!

As members of this group you probably already know that we havereleased a free version of 32-bit kdb+, for all platforms, for non-commercial use. To learn kdb+ you will find a couple of other newdevelopments to be useful:- code.kx has been opened to ...