TRẦN VĂN BÌNH MASTER: Các câu lệnh nhanh quản trị DataGuard trên SecureCRT

Thứ Hai, 23 tháng 2, 2026

Các câu lệnh nhanh quản trị DataGuard trên SecureCRT

1. Mục đích:

Tạo các nút bấm giúp giám sát, vận hành, ứng cứu sự cố nhanh chóng

2. Setup:

1	Format_Date	ALTER SESSION SET nls_date_format='DD-MON-YYYY HH24:MI:SS'; \n set linesize 150; \n
2	Lag	SELECT NAME, VALUE FROM V$DATAGUARD_STATS WHERE NAME='apply lag'; \n
3	Process	SELECT PROCESS, CLIENT_PROCESS, THREAD#, SEQUENCE#,STATUS, BLOCK#, BLOCKS FROM Gv$MANAGED_STANDBY order by PROCESS, thread#, SEQUENCE#; \n
4	Seq	SELECT thread#,sequence#, first_time, next_time,completion_time, applied FROM v$archived_log where next_time>sysdate-1 ; \n
5	Seq_NO	SELECT thread#,sequence#, first_time, completion_time, applied FROM v$archived_log where next_time>sysdate-3 and applied='NO' order by thread#,completion_time ; \n
6	Seq_R_Max	select thread#,sequence#,completion_time, applied from v$archived_log where sequence# in (select max(sequence#) from v$archived_log where thread#=1); \n select thread#,sequence#,completion_time,applied from v$archived_log where sequence# in (select max(sequence#) from v$archived_log where thread#=2); \n
7	Seq_R_A	SELECT ARCH.THREAD# "Thread", ARCH.SEQUENCE# "Last Sequence Received", APPL.SEQUENCE# "Last Sequence Applied",(ARCH.SEQUENCE# - APPL.SEQUENCE#) "Difference" FROM (SELECT THREAD# ,SEQUENCE# FROM V$ARCHIVED_LOG WHERE (THREAD#,FIRST_TIME ) IN (SELECT THREAD#,MAX(FIRST_TIME) FROM V$ARCHIVED_LOG GROUP BY THREAD#)) ARCH, (SELECT THREAD# ,SEQUENCE# FROM V$LOG_HISTORY WHERE (THREAD#,FIRST_TIME ) IN (SELECT THREAD#,MAX(FIRST_TIME) FROM V$LOG_HISTORY GROUP BY THREAD#)) APPL WHERE ARCH.THREAD# = APPL.THREAD# ORDER BY 1 ; \n
8	Minus	SELECT NAME, thread#, sequence#, next_time, first_change#, creator, fal, registrar, archived, applied, deleted, TRUNC (blocks * block_size / 1024 / 1024) \|\| 'M' arc FROM v$archived_log WHERE thread# = 1 AND sequence# >= (SELECT MAX (sequence#) FROM v$archived_log WHERE applied = 'YES' AND thread# = 1) and dest_id=2 UNION ALL SELECT NAME, thread#, sequence#, next_time, first_change#, creator, fal, registrar, archived, applied, deleted, TRUNC (blocks * block_size / 1024 / 1024) \|\| 'M' arc FROM v$archived_log WHERE thread# = 2 AND sequence# >= (SELECT MAX (sequence#) FROM v$archived_log WHERE applied = 'YES' AND thread# = 2) and dest_id=2 ORDER BY thread#, sequence# DESC; \n
9	Seq_	ALTER SESSION SET nls_date_format='DD-MON-YYYY HH24:MI:SS' ; \n SELECT thread#,sequence#, first_time, next_time,applied FROM v$archived_log ; \n
10	Show_Mgn	show parameter standby_file_management \n
11	Show_Dest2	show parameter log_archive_dest_state_2; \n
12	Start	alter database recover managed standby database using current logfile disconnect;
13	Stop	alter database recover managed standby database cancel;
14	log_archive_dest_2	show parameter log_archive_dest_2; \n
15	Defer_dest2	alter system set log_archive_dest_state_2=defer sid='*' scope=both;
16	Enable_dest2	alter system set log_archive_dest_state_2=enable sid='*' scope=both;
17	Role	select DATABASE_ROLE,db_unique_name,primary_db_unique_name,open_mode from gv$database; \n
18	Format_RMAN_Date	export NLS_DATE_FORMAT='DD-MON-YYYY HH24:MI:SS' \n

3. Chi tiết

Thứ tự các câu lệnh như bên dưới:

1.sys@bill1> ALTER SESSION SET nls_date_format='DD-MON-YYYY HH24:MI:SS';

Session altered.

2.sys@bill1> set linesize 150;

sys@bill1> SELECT NAME, VALUE FROM V$DATAGUARD_STATS WHERE NAME='apply lag';

NAME VALUE

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

apply lag

3.sys@bill1> SELECT PROCESS, CLIENT_PROCESS, THREAD#, SEQUENCE#,STATUS, BLOCK#, BLOCKS FROM Gv$MANAGED_STANDBY order by PROCESS, thread#, SEQUENCE#;

PROCESS CLIENT_P THREAD# SEQUENCE# STATUS BLOCK# BLOCKS

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

ARCH ARCH 0 0 CONNECTED 0 0

MRP0 N/A 1 13558 WAIT_FOR_LOG 0 0

RFS LGWR 1 13558 IDLE 634237 4

RFS LGWR 2 25100 IDLE 2058626 77

19 rows selected.

4.Sequence:

1 13531 23-FEB-2026 08:50:48 23-FEB-2026 08:52:33 23-FEB-2026 08:53:00 YES

2 25074 23-FEB-2026 08:48:18 23-FEB-2026 08:52:36 23-FEB-2026 08:53:03 YES

1 13532 23-FEB-2026 08:52:33 23-FEB-2026 08:53:10 23-FEB-2026 08:53:37 YES

1 13533 23-FEB-2026 08:53:10 23-FEB-2026 08:55:10 23-FEB-2026 08:55:37 YES

1 13534 23-FEB-2026 08:55:10 23-FEB-2026 09:04:28 23-FEB-2026 09:04:56 YES

2 25075 23-FEB-2026 08:52:36 23-FEB-2026 09:04:30 23-FEB-2026 09:04:57 YES

1 13535 23-FEB-2026 09:04:28 23-FEB-2026 09:08:20 23-FEB-2026 09:08:47 YES

1 13536 23-FEB-2026 09:08:20 23-FEB-2026 09:09:02 23-FEB-2026 09:09:29 YES

1 13537 23-FEB-2026 09:09:02 23-FEB-2026 09:10:14 23-FEB-2026 09:10:41 YES

2 25076 23-FEB-2026 09:04:30 23-FEB-2026 09:10:15 23-FEB-2026 09:10:43 YES

1 13538 23-FEB-2026 09:10:14 23-FEB-2026 09:12:26 23-FEB-2026 09:12:53 YES

1 13539 23-FEB-2026 09:12:26 23-FEB-2026 09:12:59 23-FEB-2026 09:13:26 YES

1 13540 23-FEB-2026 09:12:59 23-FEB-2026 09:14:41 23-FEB-2026 09:15:08 YES

2 25077 23-FEB-2026 09:10:15 23-FEB-2026 09:14:43 23-FEB-2026 09:15:10 YES

1 13541 23-FEB-2026 09:14:41 23-FEB-2026 09:17:53 23-FEB-2026 09:18:20 YES

2 25078 23-FEB-2026 09:14:43 23-FEB-2026 09:22:28 23-FEB-2026 09:22:55 YES

1 13542 23-FEB-2026 09:17:53 23-FEB-2026 09:25:02 23-FEB-2026 09:25:29 YES

2 25079 23-FEB-2026 09:22:28 23-FEB-2026 09:28:01 23-FEB-2026 09:28:28 YES

2 25080 23-FEB-2026 09:28:01 23-FEB-2026 09:29:16 23-FEB-2026 09:29:43 YES

2 25081 23-FEB-2026 09:29:16 23-FEB-2026 09:32:46 23-FEB-2026 09:33:13 YES

1 13543 23-FEB-2026 09:25:02 23-FEB-2026 09:32:48 23-FEB-2026 09:33:15 YES

2 25082 23-FEB-2026 09:32:46 23-FEB-2026 09:34:23 23-FEB-2026 09:34:50 YES

2 25083 23-FEB-2026 09:34:23 23-FEB-2026 09:35:32 23-FEB-2026 09:35:59 YES

1 13544 23-FEB-2026 09:32:48 23-FEB-2026 09:46:33 23-FEB-2026 09:47:00 YES

2 25084 23-FEB-2026 09:35:32 23-FEB-2026 09:47:17 23-FEB-2026 09:47:44 YES

1 13545 23-FEB-2026 09:46:33 23-FEB-2026 09:47:31 23-FEB-2026 09:47:57 YES

1 13546 23-FEB-2026 09:47:31 23-FEB-2026 09:51:31 23-FEB-2026 09:51:58 YES

1 13547 23-FEB-2026 09:51:31 23-FEB-2026 09:53:04 23-FEB-2026 09:53:31 YES

2 25085 23-FEB-2026 09:47:17 23-FEB-2026 09:53:05 23-FEB-2026 09:53:32 YES

1 13548 23-FEB-2026 09:53:04 23-FEB-2026 09:54:31 23-FEB-2026 09:54:58 YES

1 13549 23-FEB-2026 09:54:31 23-FEB-2026 09:55:40 23-FEB-2026 09:56:07 YES

2 25086 23-FEB-2026 09:53:05 23-FEB-2026 10:04:15 23-FEB-2026 10:04:42 YES

1 13550 23-FEB-2026 09:55:40 23-FEB-2026 10:04:46 23-FEB-2026 10:05:13 YES

2 25087 23-FEB-2026 10:04:15 23-FEB-2026 10:06:00 23-FEB-2026 10:06:27 YES

2 25088 23-FEB-2026 10:06:00 23-FEB-2026 10:07:30 23-FEB-2026 10:07:57 YES

2 25089 23-FEB-2026 10:07:30 23-FEB-2026 10:13:15 23-FEB-2026 10:13:42 YES

1 13551 23-FEB-2026 10:04:46 23-FEB-2026 10:13:17 23-FEB-2026 10:13:43 YES

2 25090 23-FEB-2026 10:13:15 23-FEB-2026 10:14:57 23-FEB-2026 10:15:24 YES

2 25091 23-FEB-2026 10:14:57 23-FEB-2026 10:16:03 23-FEB-2026 10:16:30 YES

2 25092 23-FEB-2026 10:16:03 23-FEB-2026 10:19:07 23-FEB-2026 10:19:33 YES

1 13552 23-FEB-2026 10:13:17 23-FEB-2026 10:19:08 23-FEB-2026 10:19:35 YES

2 25093 23-FEB-2026 10:19:07 23-FEB-2026 10:22:37 23-FEB-2026 10:23:04 YES

2 25094 23-FEB-2026 10:22:37 23-FEB-2026 10:24:28 23-FEB-2026 10:24:55 YES

2 25095 23-FEB-2026 10:24:28 23-FEB-2026 10:25:10 23-FEB-2026 10:25:37 YES

1 13553 23-FEB-2026 10:19:08 23-FEB-2026 10:25:11 23-FEB-2026 10:25:38 YES

2 25096 23-FEB-2026 10:25:10 23-FEB-2026 10:27:07 23-FEB-2026 10:27:34 YES

1 13554 23-FEB-2026 10:25:11 23-FEB-2026 10:33:24 23-FEB-2026 10:33:50 YES

1 13555 23-FEB-2026 10:33:24 23-FEB-2026 10:34:12 23-FEB-2026 10:34:39 YES

1 13556 23-FEB-2026 10:34:12 23-FEB-2026 10:36:12 23-FEB-2026 10:36:39 YES

2 25097 23-FEB-2026 10:27:07 23-FEB-2026 10:36:13 23-FEB-2026 10:36:40 YES

1 13557 23-FEB-2026 10:36:12 23-FEB-2026 10:42:00 23-FEB-2026 10:42:27 YES

2 25098 23-FEB-2026 10:36:13 23-FEB-2026 10:42:55 23-FEB-2026 10:43:22 NO

2 25099 23-FEB-2026 10:42:55 23-FEB-2026 10:43:52 23-FEB-2026 10:44:19 NO

630 rows selected.

5.sys@bill1> SELECT thread#,sequence#, first_time, completion_time, applied FROM v$archived_log where next_time>sysdate-3 and applied='NO' order by thread#,completion_time ;

THREAD# SEQUENCE# FIRST_TIME COMPLETION_TIME APPLIED

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

2 25098 23-FEB-2026 10:36:13 23-FEB-2026 10:43:22 NO

2 25099 23-FEB-2026 10:42:55 23-FEB-2026 10:44:19 NO

6.sys@bill1> select thread#,sequence#,completion_time, applied from v$archived_log where sequence# in (select max(sequence#) from v$archived_log where thread#=1);

select thread#,sequence#,completion_time,applied from v$archived_log where sequence# in (select max(sequence#) from v$archived_log where thread#=2);

THREAD# SEQUENCE# COMPLETION_TIME APPLIED

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

1 13557 23-FEB-2026 10:42:27 YES

sys@bill1>

THREAD# SEQUENCE# COMPLETION_TIME APPLIED

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

2 25099 23-FEB-2026 10:44:19 NO

7.sys@bill1> SELECT ARCH.THREAD# "Thread", ARCH.SEQUENCE# "Last Sequence Received", APPL.SEQUENCE# "Last Sequence Applied",(ARCH.SEQUENCE# - APPL.SEQUENCE#) "Difference" FROM (SELECT THREAD# ,SEQUENCE# FROM V$ARCHIVED_LOG WHERE (THREAD#,FIRST_TIME ) IN (SELECT THREAD#,MAX(FIRST_TIME) FROM V$ARCHIVED_LOG GROUP BY THREAD#)) ARCH, (SELECT THREAD# ,SEQUENCE# FROM V$LOG_HISTORY WHERE (THREAD#,FIRST_TIME ) IN (SELECT THREAD#,MAX(FIRST_TIME) FROM V$LOG_HISTORY GROUP BY THREAD#)) APPL WHERE ARCH.THREAD# = APPL.THREAD# ORDER BY 1 ;

Thread Last Sequence Received Last Sequence Applied Difference

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

1 13557 13557 0

2 25099 25098 1

8.Minus:

sys@bill1> SELECT NAME, thread#, sequence#, next_time, first_change#, creator, fal, registrar, archived, applied, deleted, TRUNC (blocks * block_size / 1024 / 1024) || 'M' arc FROM v$archived_log WHERE thread# = 1 AND sequence# >= (SELECT MAX (sequence#) FROM v$archived_log WHERE applied = 'YES' AND thread# = 1) and dest_id=2 UNION ALL SELECT NAME, thread#, sequence#, next_time, first_change#, creator, fal, registrar, archived, applied, deleted, TRUNC (blocks * block_size / 1024 / 1024) || 'M' arc FROM v$archived_log WHERE thread# = 2 AND sequence# >= (SELECT MAX (sequence#) FROM v$archived_log WHERE applied = 'YES' AND thread# = 2) and dest_id=2 ORDER BY thread#, sequence# DESC;

NAME

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

THREAD# SEQUENCE# NEXT_TIME FIRST_CHANGE# CREATOR FAL REGISTR ARC APPLIED DEL ARC

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

+RECO/bill/archivelog/2026_02_23/thread_1_seq_13558.2427.1225968147

1 13558 23-FEB-2026 10:48:00 1.4530E+13 LGWR NO RFS YES NO NO 532M

+RECO/bill/archivelog/2026_02_23/thread_1_seq_13557.2423.1225967799

1 13557 23-FEB-2026 10:42:00 1.4530E+13 LGWR NO RFS YES YES NO 1249M

+RECO/bill/archivelog/2026_02_23/thread_2_seq_25100.2429.1225968259

2 25100 23-FEB-2026 10:47:58 1.4530E+13 LGWR NO RFS YES NO NO 1261M

+RECO/bill/archivelog/2026_02_23/thread_2_seq_25099.2425.1225968203

2 25099 23-FEB-2026 10:43:52 1.4530E+13 LGWR NO RFS YES NO NO 1297M

+RECO/bill/archivelog/2026_02_23/thread_2_seq_25098.2424.1225967801

2 25098 23-FEB-2026 10:42:55 1.4530E+13 LGWR NO RFS YES NO NO 1277M

+RECO/bill/archivelog/2026_02_23/thread_2_seq_25097.2419.1225967255

2 25097 23-FEB-2026 10:36:13 1.4530E+13 LGWR NO RFS YES YES NO 1081M

9.Seq_

1 13543 23-FEB-2026 09:25:02 23-FEB-2026 09:32:48 YES

2 25082 23-FEB-2026 09:32:46 23-FEB-2026 09:34:23 YES

2 25083 23-FEB-2026 09:34:23 23-FEB-2026 09:35:32 YES

1 13544 23-FEB-2026 09:32:48 23-FEB-2026 09:46:33 YES

2 25084 23-FEB-2026 09:35:32 23-FEB-2026 09:47:17 YES

1 13545 23-FEB-2026 09:46:33 23-FEB-2026 09:47:31 YES

1 13546 23-FEB-2026 09:47:31 23-FEB-2026 09:51:31 YES

1 13547 23-FEB-2026 09:51:31 23-FEB-2026 09:53:04 YES

2 25085 23-FEB-2026 09:47:17 23-FEB-2026 09:53:05 YES

1 13548 23-FEB-2026 09:53:04 23-FEB-2026 09:54:31 YES

1 13549 23-FEB-2026 09:54:31 23-FEB-2026 09:55:40 YES

2 25086 23-FEB-2026 09:53:05 23-FEB-2026 10:04:15 YES

1 13550 23-FEB-2026 09:55:40 23-FEB-2026 10:04:46 YES

2 25087 23-FEB-2026 10:04:15 23-FEB-2026 10:06:00 YES

2 25088 23-FEB-2026 10:06:00 23-FEB-2026 10:07:30 YES

2 25089 23-FEB-2026 10:07:30 23-FEB-2026 10:13:15 YES

1 13551 23-FEB-2026 10:04:46 23-FEB-2026 10:13:17 YES

2 25090 23-FEB-2026 10:13:15 23-FEB-2026 10:14:57 YES

2 25091 23-FEB-2026 10:14:57 23-FEB-2026 10:16:03 YES

2 25092 23-FEB-2026 10:16:03 23-FEB-2026 10:19:07 YES

1 13552 23-FEB-2026 10:13:17 23-FEB-2026 10:19:08 YES

2 25093 23-FEB-2026 10:19:07 23-FEB-2026 10:22:37 YES

2 25094 23-FEB-2026 10:22:37 23-FEB-2026 10:24:28 YES

2 25095 23-FEB-2026 10:24:28 23-FEB-2026 10:25:10 YES

1 13553 23-FEB-2026 10:19:08 23-FEB-2026 10:25:11 YES

2 25096 23-FEB-2026 10:25:10 23-FEB-2026 10:27:07 YES

1 13554 23-FEB-2026 10:25:11 23-FEB-2026 10:33:24 YES

1 13555 23-FEB-2026 10:33:24 23-FEB-2026 10:34:12 YES

1 13556 23-FEB-2026 10:34:12 23-FEB-2026 10:36:12 YES

2 25097 23-FEB-2026 10:27:07 23-FEB-2026 10:36:13 YES

1 13557 23-FEB-2026 10:36:12 23-FEB-2026 10:42:00 YES

2 25098 23-FEB-2026 10:36:13 23-FEB-2026 10:42:55 YES

2 25099 23-FEB-2026 10:42:55 23-FEB-2026 10:43:52 YES

2 25100 23-FEB-2026 10:43:52 23-FEB-2026 10:47:58 IN-MEMORY

1 13558 23-FEB-2026 10:42:00 23-FEB-2026 10:48:00 NO

8846 rows selected.

sys@bill1>

sys@bill1> show parameter standby_file_management

NAME TYPE VALUE

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

standby_file_management string AUTO

sys@bill1> show parameter log_archive_dest_state_2;

NAME TYPE VALUE

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

log_archive_dest_state_2 string DEFER

log_archive_dest_state_20 string enable

log_archive_dest_state_21 string enable

log_archive_dest_state_22 string enable

log_archive_dest_state_23 string enable

log_archive_dest_state_24 string enable

log_archive_dest_state_25 string enable

log_archive_dest_state_26 string enable

log_archive_dest_state_27 string enable

log_archive_dest_state_28 string enable

log_archive_dest_state_29 string enable

sys@bill1> alter database recover managed standby database using current logfile disconnect;

sys@bill1> alter database recover managed standby database cancel;

sys@bill1> show parameter log_archive_dest_2;

NAME TYPE VALUE

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

log_archive_dest_2 string SERVICE=billhcm ASYNC NOAFFIRM

DELAY=0 OPTIONAL COMPRESSION=

ENABLE MAX_FAILURE=0 MAX_CONNE

CTIONS=1 REOPEN=300 DB_UNIQUE_

NAME=bill NET_TIMEOUT=30 VALID

_FOR=(ALL_LOGFILES,PRIMARY_ROL

log_archive_dest_20 string

log_archive_dest_21 string

log_archive_dest_22 string

log_archive_dest_23 string

log_archive_dest_24 string

log_archive_dest_25 string

log_archive_dest_26 string

log_archive_dest_27 string

log_archive_dest_28 string

log_archive_dest_29 string

...

sys@bill1> select DATABASE_ROLE,db_unique_name,primary_db_unique_name,open_mode from gv$database;

DATABASE_ROLE DB_UNIQUE_NAME PRIMARY_DB_UNIQUE_NAME OPEN_MODE

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

PHYSICAL STANDBY bill bill READ ONLY WITH APPLY

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Thứ Hai, 23 tháng 2, 2026

Các câu lệnh nhanh quản trị DataGuard trên SecureCRT

ĐỌC NHIỀU