Someone told me that we could consolidate our Oracle servers onto the AS/400. Basically, that you can load Oracle onto the AS/400. This doesn't seem logical to me, as IBM is DB2. Can this be done? Is there an Oracle database for OS/400?
I don't know of a way to run Oracle directly on the AS/400, although I've heard rumors of that for years. Oracle does make an AS/400 gateway product, which provides an interface with which the Oracle server can direct part, or all of an SQL operation to an AS/400 database. This is probably the product to which you are referring.
Oracle has detailed information on this product on their Web site. Go to Oracle.com and search on AS/400.