Hey there -- I have a Retool Database with tables defined and when I try to create an app from a database, the drop-down of databases is empty. See screenshot. Yet, I do have four tables defined. It's my first time doing this, so maybe I'm missing a step. Thanks!
Hi @sammyw, if you have an external relational database (not one built in in Retool), like a Postgres, MySQL, Snowflake, etc. It will show here. If you are using the Retool db and you want the admin template, just choose "App" after clicking the "Create" button, and choose one of the templates. The table will be automatically connected to your Retool db. You can always change the table that data is being retrieved from by updating the "getRows" query or writing a new one.
You are welcome! 
Happy building! 