kdb+ and q
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Question about the performance difference of two queries on HDB

HI allI have 2 very simple query which do essentially same work:\t select avg x by sym, minute from t where date in dates,sym in syms\t t1:select from t where date in dates; select avg x by sym, minute from t1 where sym in symsThe table is not really...

carfield1 by New Contributor
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Alternative ODBC driver

Subject: Alternative ODBC driverMessage-Id: <862F0921-96C3-4A29-A3B9-3B536C6F4358@aquaq.co.uk>Date: Fri, 22 Jan 2016 12:39:29 +0000To: personal-kdbplus@googlegroups.comMime-Version: 1.0 (Mac OS X Mail 9.2 \(3112\))X-Mailer: Apple Mail (2.3112)Hi At A...

running q from my windows PC

I tried to follow the instructions under http://code.kx.com/wiki/Tutorials/Installation?_ga=1.145772340.1247549383.1453193610#Double_Click_MethodBut when I double click, a window pops up for a small split-second and then disappears. How should I fix ...

Splayed table

Hey Guys,I have created a partitioned/splayed table. For each country/each date, I've created a file that contains all the tickdata so if I want to extract the tickdata for a particular country i do: 1) I load the tickdata for a specific country (`:d...