1.确认该功能状态
SQL> desc v$block_change_tracking;
名称
----------------------------------
STATUS
FILENAME
BYTES
SQL>
SQL> select * from v$block_change_tracking; //默认disabled
STATUS FILENAME BYTES
---------- ------------------------ ----------
DISABLED
2.启动该功能
11g中必须指定文件名称
SQL> alter database enable block change tracking using file 'e:\app\oraclebase\oradata\orcl\rman\block_change_tracking.log';
而10g中有默认文件名称,用下面的语句即可
SQL>alter database enable block change tracking;
3.关闭该功能
SQL>alter database disable block change tracking;