单选题You are maintaining the PROD database of TeleSoft Corporation. You have initialized the following DB_BLOCK_CHECKING parameter in the init.ora file： DB_BLOCK_CHECKING = TRUE； What will be the result of setting this parameter？（）A Only data blocks of the SYSTEM tablespace will be checked.B Only data blocks of the SYSAUX tablespace will be checked.C A checksum will occur only on the checkpoint.D A checksum will occur every time a block is modified.
单选题
You are maintaining the PROD database of TeleSoft Corporation. You have initialized the following DB_BLOCK_CHECKING parameter in the init.ora file： DB_BLOCK_CHECKING = TRUE； What will be the result of setting this parameter？（）
A
Only data blocks of the SYSTEM tablespace will be checked.
B
Only data blocks of the SYSAUX tablespace will be checked.
C
A checksum will occur only on the checkpoint.
D
A checksum will occur every time a block is modified.
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