I have a map of soil properties. I am trying to exclude areas that are designated for protection from a selection on this map.

I have tried to use the following query:

SOIL_TEXTURE = 'clay' AND SPA_NAME IS NULL but this does not work
  • 2
    you must use double quote for fields names. – snaileater Mar 4 at 18:23
  • I have double quoted field names but it still doesn't work – user138047 Mar 4 at 22:20
  • More info is needed. Can you share a screenshot of the attribute table? – ndawson Mar 5 at 0:26
  • So ? Has it been solved ? – snaileater Mar 7 at 18:11

Field names need to be double-quoted in your expression. See, for example, the QGIS documentation on expressions.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.