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Evaluate the following command: SQL>ALTER SYSTEM SET db_securefile = 'IGNORE'; What is the impact of this setting on the usage of SecureFiles?（）
A:It forces BasicFiles to be created even if the SECUREFILE option is specified to create the LOB
B:It forces SecureFiles to be created even if the BASICFILE option is specified to create the LOB
C:It does not allow the creation of SecureFiles and generates an error if the SECUREFILE option is specified to create the LOB
D:It ignores the SECUREFILE option only if a Manual Segment Space Management tablespace is used and creates a BasicFile

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出自：Oracle认证

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