by David Crowther
Question:
Is it possible to change the value being shown in the Attribute Table when there are blank/null values?
Answer:
By default, when you browse an Attribute Table for a Layer in QGIS and there are blank values for data the cell will show a NULL value.
However, choosing Settings > Options > on the Data Sources Tab > and the Feature Attributes and Table section you can change the default value that is used for blank/null values. Here we have set the value to say – No Data Entered.
From now, when you open an Attribute Table for a Layer any cells that have Null/Blank values will now show - No Data Entered.