I am looking for a solution for joining constantly modificated data to my shapefile. The shapefile consists of polygons. Each one has a code. In the Access database, I have varias colums for one code and I do not want to loose this information by performing an one-to-one join. Also, I want it to be simple to keep it up to date. I have already read about creating query tables, but I am not sure how I can use this tool to relate a shapefile to a table.
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