Tag Archive for 'timeseries visualisation'

QuestDB – Review 2023

Our latest product Pulse is for displaying real-time interactive data direct from any database. To get most benefit, the underlying databases need to be fast (<200ms queries). For our purposes databases fall into 2 categories: Really really fast, can handle queries every 200ms or less and seamlessly show data scrolling in All Other Databases. The […]

RSI Relative Strength Index in Kdb

In this tutorial we are going to recreate this example RSI calculation in q, the language of the kdb database. The relative strength index (RSI) is a technical indicator used in the analysis of financial markets. It is intended to chart the current and historical strength or weakness of a stock or market based on […]