OCP-1Z0-053-V12.02-366题

 

366.If you are going to run a TSPITR recovery, which view will help you to determine which objects will be

lost during the TSPITR?

A. TS_OBJECTS_TO_BE_DROPPED

B. TS_PTTR_OBJECT_DROPPED

C. TS_PITR_OBJECTS_TO_BE_DROPPED

D. TS_OBJECTS_DROPPED

E. TS_DROPPED_OBJECTS

Answer: C

答案解析：

参考：http://blog.csdn.net/rlhua/article/details/12659769

官网参考：http://docs.oracle.com/cd/E11882_01/backup.112/e10642/rcmtspit.htm#BRADV89795

确定将丢失的对象

• 目标恢复时间之后在表空间中创建的对象会丢失。

• 查询TS_PITR_OBJECTS_TO_BE_DROPPED，确定哪些对象在执行TSPITR 之后会丢失。

• 在执行TSPITR 前后分别使用导出和导入来保留并重新创建丢失的对象。

查询TS_PITR_OBJECTS_TO_BE_DROPPED视图，确定是否存在执行表空间时间点恢复后会丢失的对象。

例如，要对USERS和EXAMPLE表空间执行TSPITR，目标时间为2006 年4 月3 日上午8:30:00。

请通过发出以下查询，确定是否存在执行TSPITR 后会丢失的任何对象：

SELECT OWNER, NAME, TABLESPACE_NAME,

TO_CHAR(CREATION_TIME, 'YYYY-MM-DD:HH24:MI:SS')

FROM TS_PITR_OBJECTS_TO_BE_DROPPED

WHERE TABLESPACE_NAME IN ('USERS','EXAMPLE')

AND CREATION_TIME >

TO_DATE('2006-APR-03:08:30:00','YY-MON-DD:HH24:MI:SS')

ORDER BY TABLESPACE_NAME, CREATION_TIME;

Step 3: Identify and Preserve Objects That Are Lost After TSPITR

When you perform RMAN TSPITR on a tablespace, objects created after the target recovery time are lost. You can preserve such objects after they are identified by exporting them before TSPITR with the Data Pump Export utility and reimporting them afterward with Data Pump Import.

To determine which objects are lost in TSPITR, query the TS_PITR_OBJECTS_TO_BE_DROPPED view on the primary database.