From Seo Wiki - Search Engine Optimization and Programming Languages
Q is a proprietary array processing language developed by Arthur Whitney and commercialized by Kx Systems. The language serves as the query language for KDB+, a disk based and in-memory, column-based database. Kdb+ is based upon K, a terse variant of APL. Q is a thin wrapper around K, providing a more readable, English like interface.
- APL - the first array programming language
- J - another APL-inspired language
- K - the language Q is built upon
- Q For Mortals: A Tutorial in Q Programming, by Jeffry A Borror, ISBN 78-1434829016