I read this request more like a need for keeping a history file in QV for several snapshots of fact data, for example storing the current exchange rate on a day each day, so you get a history of rates.
- Create a QVW that queries your data source and read all current data.
- Aggregate the data to an appropriate level as needed
- append the data to a QVD that stores all snapshots with an additionally created 'snapshotdate' field
This QVD can then be used in any other application.
Do you have something like this in mind?