It would appear that the GIS.CITY_ALL Feature Class has some kind of association with a view which is causing the migration to fail (ie: Spatial View, Oracle View, Materialized View, Multiversion View, even a user defined Triggers could cause the migration to fail). I've even seen a rare case where a spatial view was created on a feature class then the spatial view was registered with ArcSDE - so it didn't appear as a view anymore - it showed up as an SDE Feature Class. Then when the parent Feature Class was migrated, it failed because it had dependent views associated to it.
Log into SQL*Plus as the GIS user, execute the following queries, then examine the results to ensure that the CITY_ALL Feature Class is not partaking in any views.
set long 999999
set pages 500
set lines 130
col table_name for a30
-- Metadata for all Views
select dbms_metadata.get_ddl('VIEW',vw.view_name) from user_views vw;
-- Metadata for all Materialized Views
select dbms_metadata.get_ddl('VIEW',mvw.mview_name) from user_mviews mvw;
-- Multiversioned Views present
select owner,table_name,imv_view_name from sde.table_registry where UPPER(table_name) like '%CITY_ALL%';
-- Metadata for Triggers
select dbms_metadata.get_ddl('TRIGGER',tr.trigger_name) from user_triggers tr;
-- Metadata for the CITY_ALL Feature Class
select dbms_metadata.get_ddl('TABLE','CITY_ALL') from dual;
Also check your sdedc_Oracle.log in your %TEMP% directory - to see if any additional information is present which may explain why the migration failed.
Hope this helps.
-Shawn
