---
title: "Wialon Data Engineering Blog | FleetSQL"
url: https://fleetsql.app/blog/
description: "Engineering notes on extracting Wialon GPS telemetry to PostgreSQL: API limits, pipeline design, fleet analytics and the SQL behind the answers."
---

# Wialon data engineering. What we ship, what you query.

Notes from building and running a Wialon extraction in production: where the platform’s API limits actually bite, why a daily row needs a timezone before it means anything, and what becomes answerable once the data sits in a database you can join against. Written for the people who will run the queries.

If you are weighing this up rather than reading for interest, the shorter route is [how this compares with Wialon’s own reports](https://fleetsql.app/vs-wialon-reports/) and [the tables you would be querying](https://fleetsql.app/blog/wialon-postgresql-tables/).

September 21, 2026 · Guides

## What lands in a PostgreSQL copy of your Wialon fleet

The tables FleetSQL writes into your database — units, trips, speedings, fuel and EV events, your own Wialon reports — and the queries they answer.

[What lands in a PostgreSQL copy of your Wialon fleet](https://fleetsql.app/blog/wialon-postgresql-tables/)

August 7, 2026 · Case studies

## Who drove it before the tracker went offline?

A Wialon integrator needed the last driver of every unit that stopped reporting. Three ways to get it: reports and Excel, FleetTAB, or SQL.

[Who drove it before the tracker went offline?](https://fleetsql.app/blog/wialon-last-driver-before-offline/)

June 24, 2026 · Guides

## Wialon data extraction: working within the limits

How to pull years of fleet history out of Wialon Hosting without hitting its rate limits, concurrency caps, or report timeouts.

[Wialon data extraction: working within the limits](https://fleetsql.app/blog/wialon-api-limits-data-extraction/)

June 23, 2026 · Guides

## Why and how to extract your Wialon fleet data

Four reasons to get telematics data out of Wialon — and three ways to do it: by hand, a custom ETL pipeline, or FleetSQL straight to PostgreSQL.

[Why and how to extract your Wialon fleet data](https://fleetsql.app/blog/extract-wialon-fleet-data/)

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