Hi Brent, I've often found that the problem with views has come from the id column. Does the integer "station_no" column have a unique constraint? It may need one.
I put some notes on Spatialite views in this Stack Exchange answer a few years ago. https://gis.stackexchange.com/a/301444/64762 John From: QGIS-User <qgis-user-boun...@lists.osgeo.org> On Behalf Of Brent Wood via QGIS-User Sent: 05 December 2024 21:53 To: 'Qgis-user@lists.osgeo.org' <qgis-user@lists.osgeo.org> Subject: [Qgis-user] Help opening a Spatialite view in QGIS Hi, I have created a view in a spatialite database, but am unable to open it in QGIS. I can't find any documentation on how this works. I have a table "stations" which contains a station_no column (integer) and a point geometry column (startp, EPSG 4326). The view is created by: create view v_stat as select station_no, startp from station; I add an entry to the Spatialite views_geometry_columns table to populate the metadata describing the view. insert into views_geometry_columns (view_name, view_geometry, view_rowid, f_table_name, f_geometry_column, read_only) values ('v_stat', 'startp', 'station_no', 'station', 'startp', 1) QGIS now lists the view correctly as a table with a geometry & lists startp as the geometry, but when I try to open it, I just get an "invalid layer" error message. dbname='/home/baw/tan2413/tan2413.spdb' table="v_stat" (startp) is an invalid layer - not loaded Can anyone tell me how to set up a Spatialite view so it can be successfully opened in QGIS? Thanks Brent Wood Principal Technician, Fisheries NIWA DDI: +64 (4) 3860529 [Image removed by sender.]<https://www.niwa.co.nz/> Brent Wood Principal Technician - GIS and Spatial Data Management Programme Leader - Environmental Information Delivery +64-4-386-0529 National Institute of Water & Atmospheric Research Ltd (NIWA) 301 Evans Bay Parade Hataitai Wellington New Zealand Connect with NIWA: niwa.co.nz<https://www.niwa.co.nz> Facebook<https://www.facebook.com/nzniwa> LinkedIn<https://www.linkedin.com/company/niwa> Twitter<https://twitter.com/niwa_nz> Instagram<https://www.instagram.com/niwa_science> YouTube<https://www.youtube.com/channel/UCJ-j3MLMg1H59Ak2UaNLL3A> To ensure compliance with legal requirements and to maintain cyber security standards, NIWA's IT systems are subject to ongoing monitoring, activity logging and auditing. This monitoring and auditing service may be provided by third parties. Such third parties can access information transmitted to, processed by and stored on NIWA's IT systems. Note: This email is intended solely for the use of the addressee and may contain information that is confidential or subject to legal professional privilege. If you receive this email in error please immediately notify the sender and delete the email. This email and any attachments are intended solely for the use of the named recipients. If you are not the intended recipient you must not use, disclose, copy or distribute this email or any of its attachments and should notify the sender immediately and delete this email from your system. UK Research and Innovation (UKRI) has taken every reasonable precaution to minimise risk of this email or any attachments containing viruses or malware but the recipient should carry out its own virus and malware checks before opening the attachments. UKRI does not accept any liability for any losses or damages which the recipient may sustain due to presence of any viruses.
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