I really enjoyed the first season.
The books were great but they seriously suffered from lack of editing. Example: nobody needed to see that much of Mat whining and being an ass on the barge ride up the river and I’m glad the show left it out. I’m cautiously optimistic that the show will pull off judicious improvements to the storytelling.
You get no guarantees whatsoever that the database schema actually contains this information.
Some databases are set up with validation rules that an external tool can understand, that column FOO.BAR_ID represents a foreign key for column BAR.ID
But some databases (for example mine) have no such rules and depend on the developers to know this through documentation or occult consultation with the spirits of departed coworkers.