Hello.

(I’m not at all certain this is the right forum for this question, so apologies 
if it isn’t and please point me to a better forum.)

I’m using QGIS 3.26.6 Buenos Aires on MacOS Ventura 13.0.

I have a layer with lots of shapes, and I need to add a field or two, to some 
of the objects. I could do that in QGIS, but the interface is awkward if you 
have a few hundred objects to go through, so I’d like to export the data, group 
and filter as I like, and then re-import the processed file into QGIS.

1. Can I export just the attributes table, do the processing, and reimport? If 
so, how  do I connect the reimported attributes to the objects? Will the 
reimported attributes table clash with the existing one?

2. Or is it better to export the attributes WITH the coordinates? Which format 
is suitable for that? (I find row-based formats like csv or Excel easiest, but 
that is not too important.) I tried exporting to Excel, with ’Geometry’ 
checked, but when I tried to re-import that file again the coordinates were not 
included. 

3. I understand there is a relational database in the background. I’m very used 
to SQL. Is it better to work directly with that database, and not worry about 
importing and exporting? How do I access it?

  MagnusMG
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