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Youre performing tablespace point-in-time recovery on a tablespace called USERS. If an object in that tablespace has a foreign key constraint owned by another object in the INDEX_TBS  which statement is true？（）  
A: You cannot perform the TSPITR with the constraints enabled.
B: You must perform the TSPITR recovery of both tablespaces for it to be successful.
C: You can perform TSPITR only on the USERS tablespace.
D: RMAN will determine if the INDEX_TBS tablespace must also be duplicated and will duplicate it  automatically.
E: The TSPITR will only be successful if the constraint is enabled.

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出自：Oracle认证

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