1

I have two tables, one has the geometry and other has attributes. The table with geometry has unique number primary key, and 4 columns admin1,admin2,admin3,featureid.

Table two is a csv file has the same columns mentioned above and their combination forms a composite primary key.

How can i join the two tables?

4

QGIS joins cannot use composite keys. You have to create a combined key attribute column if you want to use the QGIS-internal join functionality.

An alternative would be to import the data into Spatialite or PostGIS where you will have more join options including joins on composite keys.

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