KDB
KDB, short for Kx Database, was created in 1993 by Arthur Whitney and the Kx Systems team. KDB is a high-performance, column-oriented time-series database primarily used for real-time and historical data analytics in finance, trading, and quantitative research. Developers can access KDB through the official Kx Systems platform: Kx KDB+, which provides the database engine, q programming language, and development tools for Linux, Windows, and macOS environments.
Q (KDB+ database)
Q, short for Q Programming Language, is a vector-based programming language developed by Arthur Whitney in 1993 for use with the KDB+ time-series database. It is primarily employed in high-performance financial, trading, and analytics systems, as well as real-time data applications. Developers can use Q by installing KDB+ with Q, which provides the interpreter, documentation, and tooling for Windows, macOS, and Linux platforms.