When is the option to delete field in an attribute table enabled in QGIS? I'm in editing mode and still am not able to delete a field…
QGIS – Deleting Fields in QGIS
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Related Solutions
You can use the field calculator to update the column removing unwanted chars:
replace( "mycolumn", '#F','')
You can also use this directly in an label expression, if you do not want to delete the char from the record. You have a long list of string function for you convenience.
GeoPackage is a SQLIte database, So you can edit the table with a program for manage databases.
Per example, you could to use "DBeaver", or you could to use "SQLite Expert Personal" (freeware).
With SQLite Expert you could to delete and reorder fields.
Best Answer
Recent versions of QGIS support deleting Shapefile fields from the attribute table.
Enable editing and then you can edit the shapefile attribute table and multi-delete the columns you do not need.