Kdb+

Kdb+ is a high-performance column-oriented in-memory database combined with a powerful, array-oriented programming language called Q. It is specifically optimized for storing, querying, and analyzing massive volumes of time-series data with ultra-low latency, primarily used in financial services…

Key facts

First appeared: 1998
Category: database
Problem solved: Kdb+ was created to solve the limitations of traditional relational databases in handling the extreme volume, velocity, and complexity of time-series data, such as financial tick data. It aimed to provide a single, integrated solution for high-speed ingestion, storage, real-time analytics, and historical querying with minimal latency, which was critical for high-frequency trading and quantitative analysis.
Platforms: linux, windows, macos

Related technologies

C#
Python
Solace
JDBC
Tableau
Kafka
ODBC
Java
TIBCO Rendezvous
Grafana
C++

Notable users

Investment banks
Citadel
JPMorgan Chase
Goldman Sachs
Quantitative trading firms
Bridgewater Associates
Two Sigma