Oracle 12.2提供了什么功能

sql> select inst_id, open_mode,   database_role from gv$database order by 1;

    INST_ID OPEN_MODE                        DATABASE_ROLE

---------- ------------------------------   ------------------------------------------------

           1 READ ONLY WITH APPLY             PHYSICAL STANDBY

SQL> alter user sys$umf identified by   sysumf account unlock;

create database link   dblk_EMNBBETA_TO_EMNBBETAPDG01 CONNECT TO sys$umf IDENTIFIED BY sysumf using   'LTACTESTPDG01';

create database link   dblk_EMNBBETAPDG01_TO_EMNBBETA CONNECT TO sys$umf IDENTIFIED BY sysumf using   'LTACTEST';

exec dbms_umf.configure_node ('LTACTEST');

exec dbms_umf.configure_node   ('LTACTESTPDG01','dblk_EMNBBETAPDG01_TO_EMNBBETA');

exec DBMS_UMF.create_topology   ('EMNBBETA_Topology');

set line 132

col topology_name fORMat a15

col node_name format a15

select * from dba_umf_topology;

select * from dba_umf_reGIStration;

For example

SQL> select * from dba_umf_topology;

TOPOLOGY_NAME         TARGET_ID TOPOLOGY_VERSION   TOPOLOGY_STATE

-------------------- ----------   ---------------- ------------------------

EMNBBETA_Topology     798157014                1 ACTIVE

SQL> select * from dba_umf_registration;

TOPOLOGY_NAME        NODE_NAME          NODE_ID  NODE_TYPE AS_SOURCE       AS_CANDIDATE_TA STATE

-------------------- ---------------   ---------- ---------- --------------- --------------- --------------------

EMNBBETA_Topology    LTACTEST         798157014          0 FALSE           FALSE           OK

SQL> exec DBMS_UMF.register_node   ('EMNBBETA_Topology', 'LTACTESTPDG01', 'dblk_EMNBBETA_TO_EMNBBETAPDG01',   'dblk_EMNBBETAPDG01_TO_EMNBBETA', 'FALSE', 'FALSE');

BEGIN DBMS_UMF.register_node   ('EMNBBETA_Topology', 'LTACTESTPDG01', 'dblk_EMNBBETA_TO_EMNBBETAPDG01',   'dblk_EMNBBETAPDG01_TO_EMNBBETA', 'FALSE', 'FALSE'); END;

*

ERROR at line 1:

ORA-15766: already registered in an RMF   topology

ORA-06512: at   "SYS.DBMS_UMF_INTERNAL", line 132

ORA-06512: at   "SYS.DBMS_UMF_INTERNAL", line 170

ORA-06512: at "SYS.DBMS_UMF", line   822

ORA-06512: at line 1

ORA-06512: at "SYS.DBMS_UMF", line   794

ORA-06512: at "SYS.DBMS_UMF", line   712

ORA-06512: at line 1

SQL> exec DBMS_UMF.unregister_node   ('EMNBBETA_Topology', 'LTACTESTPDG01');

PL/SQL procedure successfully completed.

exec DBMS_WORKLOAD_REPOSITORY.unregister_remote_database('LTACTESTPDG01',' EMNBBETA_Topology',TRUE);

exec   DBMS_WORKLOAD_REPOSITORY.register_remote_database(node_name=>'LTACTESTPDG01');

PL/SQL procedure successfully completed.

set line 132

col topology_name format a20

col node_name format a15

SQL> select * from dba_umf_topology;

TOPOLOGY_NAME         TARGET_ID TOPOLOGY_VERSION   TOPOLOGY_STATE

-------------------- ----------   ---------------- ------------------------

EMNBBETA_Topology     798157014                6 ACTIVE

SQL>    select * from dba_umf_registration;

TOPOLOGY_NAME        NODE_NAME          NODE_ID  NODE_TYPE AS_SOURCE       AS_CANDIDATE_TA STATE

-------------------- ---------------   ---------- ---------- --------------- --------------- --------------------

EMNBBETA_Topology    LTACTEST         798157014          0 FALSE           FALSE           OK

EMNBBETA_Topology    LTACTESTPDG01    524737559          0 FALSE           FALSE           OK

SQL> select * from dba_umf_service;

TOPOLOGY_NAME           NODE_ID SERVICE_ID

-------------------- ----------   ---------------------

EMNBBETA_Topology     524737559 AWR

SQL> exec dbms_workload_repository.create_remote_snapshot('LTACTESTPDG01');

PL/SQL procedure successfully completed.

alter system switch logfile;

@?/rdbms/admin/awrrpti.sql

SQL> @?/rdbms/admin/awrrpti.sql

Specify the Report Type

~~~~~~~~~~~~~~~~~~~~~~~

AWR reports can be generated in the   following formats.  Please enter the

name of the format at the prompt. Default   value is 'html'.

     'html'          HTML format   (default)

     'text'          Text format

     'active-html'   Includes   Performance Hub active report

Enter value for report_type: html

Type Specified: html

Instances in this Workload Repository   schema

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    DB Id      Inst Num   DB Name      Instance     Host

------------ ---------- ---------    ----------   ------

  524737559      1        LTACTEST     LTACTEST     ORADB-53154.

* 4166033225     1      LTACTEST     LTACTEST     ORADB-53163.

Enter value for dbid: 524737559

Using 524737559 for database Id

Enter value for inst_num: 1

Using 1 for instance number

Specify the number of days of snapshots   to choose from

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Entering the number of days (n) will   result in the most recent

(n) days of snapshots being listed.  Pressing <return> without

specifying a number lists all completed   snapshots.

Enter value for num_days: 1

Listing the last day's Completed   Snapshots

Instance     DB Name      Snap Id       Snap Started    Snap Level

------------ ------------ ----------   ------------------ ----------

LTACTEST     LTACTEST             1  04 Sep 2019 15:41    1

                                  2  04 Sep 2019 15:42    1

Specify the Begin and End Snapshot Ids

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Enter value for begin_snap: 1

Begin Snapshot Id specified: 1

Enter value for end_snap: 2

End     Snapshot Id specified: 2

Specify the Report Name

~~~~~~~~~~~~~~~~~~~~~~~

The default report file name is   awrrpt_1_1_2.html.  To use this name,

press <return> to continue,   otherwise enter an alternative.

Enter value for report_name:

Using the report name awrrpt_1_1_2.html