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Comment by sebg | Hacker News Reader

A companion guide that I always recommend if interested in K is: Q for mortals, found here - https://code.kx.com/q4m3/

Note, from wikipedia: Q serves as the query language for kdb+, a disk based and in-memory, column-based database. Kdb+ is based on the language k, a terse variant of the language APL. Q is a thin wrapper around k, providing a more readable, English-like interface.

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Pulled from above:

  Coding Style The q gods have no need for explanatory error messages or comments since their q code is perfect and self-documenting. Even experienced mortals spend hours poring over cryptic q error messages such as the ones above. Moreover, many mortals eschew comments in misanthropic coding macho. Don’t.

A more enjoyable read than the parent post.

There's also Nial: https://github.com/danlm/qnial7 which is (pardon the oversimplification) APL but with words instead of symbols.

A set of links with good examples of common problems solved in Q

https://code.kx.com/phrases/wikipage/

https://code.kx.com/q/kb/programming-idioms/

https://code.kx.com/phrases/

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