Can you open a PostgreSQL table with no spatial information?
There are many people or company that store their data in MySQL or PostgreSQL. Most of the data do not have spatial information. But still, we can work with the data in QGIS. For example, I will open a table with X and Y coordinate information.
Can you open a PostgreSQL table in QGIS?
PostgreSQL is a robust and reliable database server. QGIS can utilize the power of PostgreSQL in many ways. We can simply open and edit the PostgreSQL table directly from QGIS. There is a good article about the relation between QGIS – PostgreSQL here.
How to import geometries from PostGIS into QGIS?
Depending on your needs, a nice way to import geometries to PostGIS is using the Import into PostGIS tool from QGIS. Just go to the toolbox (Advanced Interface) and search for Import into Postgis. The dialog is quite straightforward (The connection to the database needs to be done beforehand)
How to import shapefile into PostGIS database?
And then import the shapefile, manually entering 27700 into the SRID field (British National Grid) and setting the ‘Shape’ field of the shapefile as the Geo Column (am I meant to do this? what is the Geo Column?). I also change the name of the Schema from ‘public’ to what I renamed it in pgAdmin. issue: 1- Shapefile import failed…
Is there a PostGIS error while adding features?
Provider errors: PostGIS error while adding features: ERRORE: nextval: è stato raggiunto il valore massimo della sequenza “mytable_gid_seq” (2147483647) Note also that if the table is created with “bigserial” a sequence with value 2147483647 will not overflow and the error 1 will not appear.
When to use.qpj instead of.prj in QGIS?
Whenever QGIS finds a .qpj file, it will be used instead of the .prj. To load a MapInfo layer, click on the Add Vector Layer toolbar button; or type Ctrl+Shift+V, change the file type filter Files of type : to ‘Mapinfo File [OGR] ( * .mif * .tab * .MIF * .TAB)’ and select the MapInfo layer you want to load.