Select duplicate geometries in a single layer in QGIS
Channel: BNHR
Date: 2020-12-09

Removing duplicate geometries and features is fairly straightforward in QGIS but what if you want to select and extract the features with duplicates or the features and their duplicates? In this video, we use a query in the DB Manager and the "Select by location" algorithm to do just that.

Read more: https://bnhr.xyz/2020/12/09/select-duplicate-geometries-layer-qgis.html



CHAPTERS
00:00 - Introduction
00:39 - Checking for duplicate geometries using the Topology Checker plugin
01:45 - Using DB Manager to get geometries with duplicates
03:59 - Load the SQL result as new layer in QGIS
05:12 - Get all duplicate features using the Select by location algorithm


#QGIS #FOSS4G