I am looking to update the Attribute table for a Layer in QGIS using a join.
However I am not looking to ADD attributes to the table (thereby adding extra columns) rather I would like to "Update" the values within the pre-existing columns.
I have read similar articles to this ---> https://infogeoblog.wordpress.com/2013/02/18/joining-layers-in-qgis/
But unfortunately it only adds columns.
Ultimately I am trying to create a CRM system from Excel, whereby I would create tasks / notes / follow ups -----> that would update the values in QGIS. Happy for any other recommendations that would achieve this or CRM QGIS plugins.