AltSql Ask Live Demo

Each machine keeps a day of readings in its own AltSql database. You ask in SQL. The gateway turns the question into a small program, every machine answers from its own records, and only the answers travel back.

Simulated machines, real engines. The machines, their readings and the network are simulated. AltSql Core and AltSql Ask run in this page, compiled to WebAssembly.

How to Run It

  1. Ask the fleet. Pick a ready-made question or write your own SQL, choose the budget per machine, and press Ask the fleet. The page shows the program each machine receives, byte by byte, and what the question cost on the network.
  2. Check the answer. The gateway pulls all 360,000 readings into one database and runs the same SQL there with AltSql Core. The two answers should be the same.
  3. Try to break it. Squeeze the budget, ask for too many groups, or flip three bits of the program on its way to the machines. A question must never hang a machine, fill its memory or change its data.

On a wide screen the demo has more room: open it full screen.

About AltSql Ask

AltSql Ask lets a gateway ask a whole fleet of devices one SQL question. Each device works out its own share of the answer from its own records, within limits the question carries, and sends back a small answer: 23 to 45 bytes for most of the demo’s questions. The gateway merges the answers into the rows the same SQL would give over all the raw data.

AltSql Ask is a prototype, all rights reserved. It works and is tested in simulation on a PC, and it has not yet run on a microcontroller: that is the Beta. Its Alpha report sets out how it was built and tested, and how each figure was measured or computed. Device makers and investors can ask for it through the contact page.

More: all live demos and the engines.