Oracle7 Server Distributed Systems Volume II: Replicated Data

CHAPTER 6. Conflict Resolution

Oracle always detects and logs update conflicts, uniqueness conflicts, and delete conflicts. In addition, Oracle provides system-defined conflict resolution routines that enable an environment using asynchronous row-level replication to resolve update conflicts and uniqueness conflicts. You can also write your own conflict resolution routines.

This chapter covers the following topics:

how conflicts are detected

how column groups are used in conflict detection

Oracle-supplied conflict resolution methods

how to designate a conflict resolution method

conflict notification

selecting a conflict resolution strategy

using column groups

using priority groups

using site priority

Additional Information: For an overview of conflict resolution routines, see Writing a Conflict Resolution Routine