31. The method of claim 28, wherein retrieving further comprises using an index to find the indicia of records.
31. The method of claim 28, wherein retrieving further comprises using an index to find the indicia of records. 32. The method of claim 31, wherein the index is selected from the group consisting of: an alternate-key index; a compound alternate-key index; a simple alternate-key index; a simple alternate-key filtered index; a compound alternate-key filtered index; and a filtered index.