Projection set

A group of buddy projections that are safe for a given level of K-safety. When K=1, there are two buddies in a set; when K=2, there are three buddies. The Database Designer assigns all projections in a projection set the same base name so they can be identified as a group.

A projection must be part of a projection set before it is refreshed. Once a projection set is created (by creating buddies), the set is refreshed in a single transaction.