I'm currently trying to create a MV using Fast refresh method.
and I'm getting the following error:
cannot fast refresh materialized view string.string
Cause: Either ROWIDs of certain tables were missing in the definition or the inner table of an outer join did not have UNIQUE constraints on join columns.
Action: Specify the FORCE or COMPLETE option. If this error is got during creation, the materialized view definition may have be changed. Refer to the documentation on materialized views.
I'm trying to create the Unique constraints required. Could anybody help me with this?. Which are the "inner tables of an outer join"?