Snapshot on a Snapshot

Is this possible and if so are there any issue of risks that one should be aware of in doing something like this.

What we are trying to accomplish is to have a seperate table (fondly called a delta table) with only the changes that have occured over a period of time but still keeping the oringinal snap shot full and intact for performance reasons. Received on Tue Dec 10 2002 - 12:11:43 CST