源端和目标端做一下授权操作试试
grant CONNECT, RESOURCE to ogguser;
grant SELECT ANY DICTIONARY, SELECT ANY TABLE to ogguser;
grant ALTER ANY TABLE to ogguser;
grant FLASHBACK ANY TABLE to ogguser;
grant EXECUTE on DBMS_FLASHBACK to ogguser;
grant insert any table to ogguser;
grant update any table to ogguser;
grant delete any table to ogguser;