23. The one or more storage media of claim 14 , wherein: a first subset of said plurality of resources are stored in an object-relational (O-R) format, a second subset of said plurality of resources are stored in a large object (LOB) format, and the index includes a locator column that is used as both a locator of resources stored in the O-R format and a locator of resources stored in the LOB format.
23. The one or more storage media of claim 14 , wherein: a first subset of said plurality of resources are stored in an object-relational (O-R) format, a second subset of said plurality of resources are stored in a large object (LOB) format, and the index includes a locator column that is used as both a locator of resources stored in the O-R format and a locator of resources stored in the LOB format. 24. The one or more storage media of claim 23 , wherein the LOB format includes at least one of the following formats: text within a character large object (CLOB) and encoded binary XML in a binary large object (BLOB).