I have an Odoo database containing tables which were created using a separate application interacting with the same database.

I know I could run SQL SELECT queries directly in Odoo to read the data, but I'm wondering if there's a way to just have the ORM read the table in a "read-only" way.

I'm already aware that you can set `_auto` to `False` on the model and override the `init()` method to disable Odoo's automatic management of the table, but I've only seen this used to have Odoo read data from a view. How would I use it to have Odoo read data from a regular table, but not write or delete?