Netsuite – Connect / Schema / Analytics – Table Relationship between Transactions and File

I have connected to the following NS schema to my SQL server database and all tables replicated
– Schema Browser (SuiteTalk)
– Connect Browser (Netsuite.com Analytics)
– Analytics Browser (Netsuite2.com Analytics)

I am trying to get the relationship between transaction and file attachment, so that I can join both table to create a list of transactions and their respective file (attachment) for each transactions. However, I haven’t found any clue over 3 databases that replicated. I wonder if that is even possible to find out the table relationship between these.