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Rick Greenwald, Robert Stackowiak, Jonathan Stern

"Oracle Essentials: Oracle Database 11g"


Latest dictates that when there are multiple new values, the value used for
updates will be in the row with the latest timestamp.
Additive and average value for column groups with single numeric columns
Additive takes the difference of new and old values at the originating site and
adds them to the current value at the destination site.
Average takes the current value at the destination and the new value at the originating
site, divides by 2, and applies the new value.
Priority groups and site priority
When priority levels are assigned to columns and multiple new values occur,
higher priority columns will update columns with lower priority.
Uniqueness conflict-resolution routines are used to resolve conflicts that result from
the distributed use of primary key and unique constraints. The built-in routines
include the following:
Append site name to duplicate value
Appends the global database name of the originating site to the replicated
column.
Append sequence to duplicate value
Appends a generated sequence number to the column value.


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