关于数据库归档
--查看数据库是否归档模式
SQL> select name,log_mode from v$database;
NAME LOG_MODE
--------- ------------
ENMO NOARCHIVELOG
SQL> archive log list;
Database log mode No Archive Mode
Automatic archival Disabled
Archive destination /u01/app/oracle/product/11.2.0/dbhome_1/dbs/arch
Oldest online log sequence 6
Current log sequence 8
--要关闭数据库 在mount下启动数据库
SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup mount
ORACLE instance started.
Total System Global Area 835104768 bytes
Fixed Size 2257840 bytes
Variable Size 541068368 bytes
Database Buffers 289406976 bytes
Redo Buffers 2371584 bytes
Database mounted.
SQL>
SQL>
--更改数据库为归档模式
SQL> alter database archivelog;
Database altered.
--- 打开数据库
SQL> alter database open;
Database altered.
--启动自动归档
SQL> alter system archive log start;
System altered.
SQL>
