Shell script to find MAX(SEQUENCE#) of primary and standby DB.

Hi All,
AIX 5.3 64bit DB:10.2.0.3.0
I am looking for a shell script which does the following:
Use SQL*Plus to query the MAX(SEQUENCE#) from both databases i.e., Primary and standby V$LOG_HISTORY view. If the STANDBY appears to be falling behind by 2 archive log files,then send alert mail to: [email protected]
We should be able to connect to primary DB from standby DB using ssh
For example: ssh ora<user>@hostname.domain
I use the following query to find out MAX(SEQUENCE#):
col logseq_on_standby new_value V_STDBY_LOGSEQ
select /*+ rule */ max(h.sequence#) logseq_on_standby
from v\$log_history h,
v\$parameter p
where h.thread# = to_number(decode(p.value,'0',1,p.value))
and p.name = 'thread';
Thanks for your time!!
Regards,

sent the shell script..
By the way is this hssawan!!!
Please check the shell script and let me know the following:
AIX 5.3 64bit DB:10.2.0.3.0
I am looking for a shell script which does the following:
Use SQL*Plus to query the MAX(SEQUENCE#) from both databases i.e., Primary and standby V$LOG_HISTORY view. If the STANDBY appears to be falling behind by 2 archive log files,then send alert mail to: [email protected]
We should be able to connect to primary DB from standby DB using ssh
For example: ssh ora<user>@hostname.domain
I use the following query to find out MAX(SEQUENCE#):
col logseq_on_standby new_value V_STDBY_LOGSEQ
select /*+ rule */ max(h.sequence#) logseq_on_standby
from v\$log_history h,
v\$parameter p
where h.thread# = to_number(decode(p.value,'0',1,p.value))
and p.name = 'thread';
Thanks for your time!!
Regards,

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4
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hi,
Just wanted to share
On Primary
SELECT THREAD# "Thread",SEQUENCE# "Last Sequence Generated"
FROM V$ARCHIVED_LOG
WHERE (THREAD#,FIRST_TIME ) IN (SELECT THREAD#,MAX(FIRST_TIME) FROM V$ARCHIVED_LOG GROUP BY THREAD#)
ORDER BY 1;
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(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;
SELECT THREAD#, LOW_SEQUENCE#, HIGH_SEQUENCE# FROM V$ARCHIVE_GAP;
Reference : http://www.oraclemasters.in/?p=1255
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I have just tried the FLASHBACK DATABASE TO SCN XXXXXXXX;
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102 712762 713720 15-AUG-08 15-AUG-08
103 713720 714748 15-AUG-08 15-AUG-08
104 714748 715920 15-AUG-08 15-AUG-08
105 715920 739430 15-AUG-08 15-AUG-08
106 739430 800525 15-AUG-08 16-AUG-08
107 800525 875810 16-AUG-08 17-AUG-08
108 875810 916527 17-AUG-08 18-AUG-08
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Fixed Size 1250428 bytes
Variable Size 180358020 bytes
Database Buffers 423624704 bytes
Redo Buffers 7135232 bytes
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Total System Global Area 612368384 bytes
Fixed Size 1250428 bytes
Variable Size 180358020 bytes
Database Buffers 423624704 bytes
Redo Buffers 7135232 bytes
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Total System Global Area 612368384 bytes
Fixed Size 1250428 bytes
Variable Size 180358020 bytes
Database Buffers 423624704 bytes
Redo Buffers 7135232 bytes
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ARC0: Archival started
ARC1: Archival started
ARC2: Archival started
ARC3: Archival started
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ARC1: Becoming the heartbeat ARCH
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11 rows selected.
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Database log mode Archive Mode
Automatic archival Enabled
Archive destination C:\local_destination1_orcl
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.Oracle documents say that the size of Log files should be the same for primary and Standby. It is only a recommendation, but, not mandatory. However, a messaage will be written to the standby alertlog file when standby database log file size is smillar than its primary database log file size.
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Shell script to find MAX(SEQUENCE#) of primary and standby DB.

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