数据库RMAN不完全恢复
欢迎进入Oracle社区论坛，与200万技术人员互动交流 >>进入 之前介绍了：Oracle数据库RMAN不完全恢复之基于SCN恢复，本文我们主要介绍一下Oracle数据库RMAN不完全恢复之基于日志序列号恢复的相关知识，希望能够对您有所帮助。 --查看归档日志信息 SQL select
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之前介绍了：Oracle数据库RMAN不完全恢复之基于SCN恢复，本文我们主要介绍一下Oracle数据库RMAN不完全恢复之基于日志序列号恢复的相关知识，希望能够对您有所帮助。
--查看归档日志信息 SQL> select * from t_user;
TEXT --------------------
java_ spring_ spring mvc_
SQL> insert into t_user select 'oracle_' from dual;
1 row created.
SQL> commit;
Commit complete.
SQL> alter system switch logfile;
System altered.
SQL> alter system checkpoint;
System altered.
SQL> select sequence#,name,first_change# from v$archived_log where status='A' order by sequence#;
SEQUENCE# NAME
FIRST_CHANGE#
---------- ---------------------------------------------------------------------------------------------------- ------------- 1 /oracle/10g/oracle/log/archive_log/archive_1_1_760487088.arclog 1214497 1 /oracle/10g/oracle/log/archive_log2/archive_1_1_760487088.arclog 1214497 1 /oracle/10g/oracle/product/10.2.0/db_1/flash_recovery_area/ORALIFE/archivelog/2011_08_29/o1_mf_1_1_7 1214498 5q9bh9d_.arc 1 /oracle/10g/oracle/log/archive_log/archive_1_1_760487985.arclog 1214498 1 /oracle/10g/oracle/log/archive_log2/archive_1_1_760487985.arclog 1214498 1 /oracle/10g/oracle/product/10.2.0/db_1/flash_recovery_area/ORALIFE/archivelog/2011_08_29/o1_mf_1_1_7 1214497 5q95ksf_.arc 6 rows selected.
SQL> insert into t_user select 'oracle_seq3' from dual;
1 row created.
SQL> commit;
Commit complete.
SQL> alter system switch logfile;
--生成日志序列号为2的归档日志
System altered.
SQL> alter system checkpoint;
System altered.
SQL> select sequence#,name,first_change# from v$archived_log where status='A' order by sequence#;
SEQUENCE# NAME
FIRST_CHANGE#
---------- ---------------------------------------------------------------------------------------------------- ------------- 1 /oracle/10g/oracle/log/archive_log/archive_1_1_760487088.arclog 1214497 1 /oracle/10g/oracle/log/archive_log2/archive_1_1_760487088.arclog 1214497 1 /oracle/10g/oracle/product/10.2.0/db_1/flash_recovery_area/ORALIFE/archivelog/2011_08_29/o1_mf_1_1_7 1214497 5q95ksf_.arc 1 /oracle/10g/oracle/log/archive_log/archive_1_1_760487985.arclog 1214498 1 /oracle/10g/oracle/log/archive_log2/archive_1_1_760487985.arclog 1214498 1 /oracle/10g/oracle/product/10.2.0/db_1/flash_recovery_area/ORALIFE/archivelog/2011_08_29/o1_mf_1_1_7 1214498 5q9bh9d_.arc 2 /oracle/10g/oracle/log/archive_log/archive_1_2_760487985.arclog 1216167 SEQUENCE# NAME FIRST_CHANGE#
---------- ---------------------------------------------------------------------------------------------------- ------------- 2 /oracle/10g/oracle/log/archive_log2/archive_1_2_760487985.arclog 1216167 2 /oracle/10g/oracle/product/10.2.0/db_1/flash_recovery_area/ORALIFE/archivelog/2011_08_29/o1_mf_1_2_7 1216167 5q9cvt1_.arc 9 rows selected.
SQL> insert into t_user select 'oracle_seq3_act' from dual;
1 row created.
SQL> commit;
Commit complete.
SQL> alter system switch logfile;
--生成日志序列号为3的归档日志
System altered.
SQL> alter system checkpoint;
System altered.
SQL> select sequence#,name,first_change# from v$archived_log where status='A' order by sequence#;
SEQUENCE# NAME
FIRST_CHANGE#
---------- ---------------------------------------------------------------------------------------------------- ------------- 1 /oracle/10g/oracle/log/archive_log/archive_1_1_760487088.arclog 1214497 1 /oracle/10g/oracle/log/archive_log2/archive_1_1_760487088.arclog 1214497 1 /oracle/10g/oracle/product/10.2.0/db_1/flash_recovery_area/ORALIFE/archivelog/2011_08_29/o1_mf_1_1_7 1214497 5q95ksf_.arc 1 /oracle/10g/oracle/log/archive_log/archive_1_1_760487985.arclog 1214498 1 /oracle/10g/oracle/log/archive_log2/archive_1_1_760487985.arclog 1214498 1 /oracle/10g/oracle/product/10.2.0/db_1/flash_recovery_area/ORALIFE/archivelog/2011_08_29/o1_mf_1_1_7 1214498 5q9bh9d_.arc 2 /oracle/10g/oracle/log/archive_log/archive_1_2_760487985.arclog 1216167 SEQUENCE# NAME FIRST_CHANGE# ---------- ---------------------------------------------------------------------------------------------------- ------------- 2 /oracle/10g/oracle/log/archive_log2/archive_1_2_760487985.arclog 1216167 2 /oracle/10g/oracle/product/10.2.0/db_1/flash_recovery_area/ORALIFE/archivelog/2011_08_29/o1_mf_1_2_7 1216167 5q9cvt1_.arc 3 /oracle/10g/oracle/log/archive_log/archive_1_3_760487985.arclog 1216186 3 /oracle/10g/oracle/log/archive_log2/archive_1_3_760487985.arclog 1216186 3 /oracle/10g/oracle/product/10.2.0/db_1/flash_recovery_area/ORALIFE/archivelog/2011_08_29/o1_mf_1_3_7 1216186 5q9f4d6_.arc 12 rows selected.
--恢复到日志序列号为3时的状态
[oracle@localhost ~]$ rman target sys/oracle@oralife nocatalog RMAN> run { startup force mount;
set until sequence=3;
restore database;
recover database;
sql 'alter database open resetlogs';
}
--查看，可见不包括日志序列号为3的归档日志信息（oracle_seq3_act），即恢复到日志序列号为2的归档日志
SQL> conn sys/oracle@oralife as sysdba Connected.
SQL> select * from t_user;
TEXT
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java_
spring_
oracle_
oracle_seq3
spring mvc_