i don't know very much about the structure of the RF_World DB, what i do to figure out what table i need for the game cp is i just use SQL Profiler and monitor the query with it.
I have implemented a feature to read the server files dat file (ringitem, amuletItem, WeaponItem, etlc) and item.dat and sync the item data with the game cp.
https://drive.google.com/file/d/12r-o40BMJZTgcl1g6cte91i88Ld1MmPG/view?usp=sharing