(Theoretical example for explanatory purposes.)
Let's say I have two databases:
Now I create an entry link in the recipes DB that links to the ingredients DB. Then I fill in the relevant ingredients for each recipe.
On the ingredients DB, a new column should auto-populate e.g. "related recipes." Right now, I have to manually create two different entry link fields and enter in the values twice.
Not sure if this has been resolved, there was a bug recently that prevented its use. See https://community.atlassian.com/t5/Confluence-Databases/Questions-and-Feedback-about-new-implementation-of-database/qaq-p/2623463