The instructions at https://docs.qgis.org/testing/en/docs/user_manual/working_with_vector/joins_relations.html#many-to-many-n-m-relations explain how to use DB Manager to write SQL queries and create tables in PostgreSQL and GeoPackage databases. Tools and (tested) SQL queries should be updated to use the Browser Panel. <!-- Cleaning the queue is a process done by project maintainers, mostly on a volunteer basis. We try to keep the overhead as small as possible and appreciate if you help us to do so by completing the following items. Include sentences with details describing the issue you have encountered (e.g., actual behavior, expected behavior, steps to reproduce). --> Page URL: https://docs.qgis.org/testing/en/docs/user_manual/working_with_vector/joins_relations.html#many-to-many-n-m-relations
The instructions at https://docs.qgis.org/testing/en/docs/user_manual/working_with_vector/joins_relations.html#many-to-many-n-m-relations explain how to use DB Manager to write SQL queries and create tables in PostgreSQL and GeoPackage databases. Tools and (tested) SQL queries should be updated to use the Browser Panel.
Page URL: https://docs.qgis.org/testing/en/docs/user_manual/working_with_vector/joins_relations.html#many-to-many-n-m-relations