sql | Blog GIS & Territories

Spatial analysis with SQL: 5- aggregation function (ArcGis Union)

In Article previous we have discussed some SQL functions for spatial processing . In this article we will see a function a little more complicated to put at work: the aggregation function for two layers of…

How to rectify the geometry of a Postgis table

We have already discussed the topic of geometry validation through a series of articles (in french): GIS tools for validation of geometries (1) Geometry validation GIS tools (2): Spatiality and PostGis Geometry validation tools (3): FME…

Atilio Francois on Portable version of QGis 3.32.015 May 2025
What is the link between the qgis update and the portable version? A portable version cannot be updated; it must…
Hugo on Portable version of QGis 3.32.014 May 2025
For me, the error message complaining that qgis_app.dll is missing started appearing following the most recent QGIS update.
Atilio Francois on Portable version of QGis 3.32.07 May 2025
Hello The problem with the portable version is that it's very dependent on the particular configuration of the machine. The…
NotFred on Portable version of QGis 3.32.07 May 2025
I have never had QGIS installed in my machine (it's a brand new laptop) and I get the same error,…
Atilio Francois on Portable version of QGis 3.32.028 April 2025
The file is present in the download ...\QGIS 3.32.0\QGIS 3.32.0\apps\qgis\bin The error message probably comes from a previous installation of…