CA Database Schema - SQL Querying

Hi there - I am currently looking to build some custom SQL queries against the CA database but am struggling to understand the various tables and their relationships.

Is anyone aware of where I can find a data relationship diagram, CA data model schema, or data dictionary to assist?

As a temporary option, I am looking at the IntDiscoveredItems table which I understand are similar to the alerts produced when certain hotwords are hit. However I am unsure how to link this table back to the IntHotwordID table?

Any help is much appreciated.