Intro to kdb+ and q | Tutorial #:15 | Input/Output I/O (*)

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  1. KX
  2. kdb
  3. q programming language
  4. Jeffry Borror
  5. Q for Mortals
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Комментарии
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Thank you for this series! I hope learning q/KDB+ will help me land a quant job

let
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Thank you for this series! Love it, definitely an interesting paradigm and tool worth master.

SergeyDidenko
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Thank you for your introduction, q is really an interesting language!

nowhereman
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This has been a very nice series and thank you for uploading it.
Just have to mention though that this solution:
f=$(<file); echo "$f" >> file



isn't really hard either :) .

ramrunnerxff
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Hi. Thanks a lot. Please can you tell me the following? 1) Where are the tables I query stored 2) How to download or stream data from an API

univuniveral
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I tried the write to file command, and I actually got an error as below.
'/data/solong.txt. OS reports: No such file or directory
[0] `:/data/solong.txt 0:("so long"; "thanks"; "for all the fish")
^
Any suggestion? Thanks in advance!

peiyutan
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weeell... we don't have any readers nor writers in q, but while `:/tmp/text.txt 0: ("aa";"bb";"cc") works, trying to write single char string does not: `:/tmp/text.txt 0: ("aa";"bb";"c") will not work. No idea how to solve this 'problem' yet :D Apparently single char string isn't string here or smth. ~ I don't have any doubt that this db is extremely useful, but using the language itself is like kindergarden teacher trying to defuse bomb. Blind-folded, with polar mittens on. After sunset.

sdfsdfdf