Usefull querys for DB
SELECT * FROM creature_template WHERE entry = "500108"; //Select a creature template and change his DisplayID or create a new one.
SELECT * FROM npc_vendor WHERE entry = "500108" AND item = "45205"; //Select a NPC vendor and an item fro that vendor or create a new item.
SELECT * FROM item_template WHERE name = "greatsword of the sin'dorei"; //Select an item.
