What I mean by a database is this.
What armors are available to be found
what weapons are available to be found
what helms.....
what boots....
what amulets/necklaces...
what rings...
etc. etc. etc.
Quality of item, i.e., Normal, rare, unique, set, etc.. In DD, this is determined by color, or in the case of a set, the Dragon set. Which is the only "Set" in the game.
What modifiers (prefix's/ suffixes) give what bonus's (or the number of possible bonus's. For example, The merciless prefix gives a real nice dmg bonus, and from what I have seen so far, is a grey color. I haven't seen an item that had the merciless prefix that is any other color but grey. And I have only found two, a death blade and a bow (forget which kind). Max dmg on the bow was over 180 though.
Since all stats are random on items, it will be hard to give exact details. Items are the same, just the quality changes.