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The DB_BLOCK_CHECKING initialization parameter is set to OFF. Which block checking would be performed？（）  
A: The Oracle database will perform block checking for the index blocks only
B: The Oracle database will not perform block checking for any of the data blocks
C: The Oracle database will perform block checking for the default permanent tablespace only
D: The Oracle database will perform block checking for the data blocks in all user tablespaces
E: The Oracle database will perform block checking for the data blocks in the SYSTEM tablespace only

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出自：Oracle认证

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