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Python 系统学习总结(基础语法+函数+数据容器+文件+异常+包+面向对象)

elvinyang 03-07 08:00 阅读 3

1、主库上查看archive Log list

SYS@cdb1> archive log list;
Database log mode              Archive Mode
Automatic archival             Enabled
Archive destination            /oradata/arch
Oldest online log sequence     39
Next log sequence to archive   41
Current log sequence           41
SYS@cdb1>

2、备库上查看archive log list

SYS@cdb1dg> archive log list;
Database log mode              Archive Mode
Automatic archival             Enabled
Archive destination            /oradata/arch
Oldest online log sequence     0
Next log sequence to archive   0
Current log sequence           0
SYS@cdb1dg>

3、解决方法

##主库查看:

SYS@cdb1> select thread#, max(sequence#) 
  2  from v$archived_log a, v$database b
  3  where a.resetlogs_change# = b.resetlogs_change#
  4  group by thread# order by 1;

   THREAD# max(sequence#)
---------- --------------------------
         1                        130


SYS@cdb1> select thread#, max(sequence#) 
  2  from v$archived_log a, v$database b
  3  where a.resetlogs_change# = b.resetlogs_change#
  4  and a.applied in ('YES','IN-MEMORY')
  5  group by thread# order by 1;

   THREAD# max(sequence#)
---------- ------------------------
         1                      130

SYS@cdb1>
##备库查看:

SYS@cdb1dg> select thread#, max(sequence#) 
  2  from v$archived_log a, v$database b
  3  where a.resetlogs_change# = b.resetlogs_change#
  4  group by thread# order by 1;

   THREAD# max(sequence#)
---------- --------------------------
         1                        130

SYS@cdb1dg> select thread#, max(sequence#) 
  2  from v$archived_log a, v$database b
  3  where a.resetlogs_change# = b.resetlogs_change#
  4  and a.applied in ('YES','IN-MEMORY')
  5  group by thread# order by 1;

   THREAD# max(sequence#)
---------- ------------------------
         1                      130

SYS@cdb1dg>

通过v a r c h i v e d l o g 与 v archived_log与v archivedlogvdatabase视图联合查询即可查看到主备库是否同步了。

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