I think you could store the QVD in csv format (just replace file extension .qvd with .csv and (qvd) by (csv) in the store statement, the csv will have the table structure of the target database table. Then depending of the db engine you're running, you can make bulk load from the csv file such as SQL loader in Oracle, you could also prepare the insert statement in each line when writing down the qvd but not sure it helps more.
