单选题View the Exhibit to examine the parameters set for your database instance.You execute the following command to perform I/O calibration after the declaration of bind variables in the session that are used in the command: Which statement describes the consequence?（）A The command produces an error.B The calibration process runs successfully and populates all the bind variables.C The calibration process runs successfully but the latency time is not computed.D The calibration process runs successfully but only the latency time is computed.Only users with the SYSDBA privilege can run this procedure. Qualified users must also turn on timed_statistics, and ensure asynch_io is enabled for datafiles.
单选题
View the Exhibit to examine the parameters set for your database instance.You execute the following command to perform I/O calibration after the declaration of bind variables in the session that are used in the command: Which statement describes the consequence?（）
A
The command produces an error.
B
The calibration process runs successfully and populates all the bind variables.
C
The calibration process runs successfully but the latency time is not computed.
D
The calibration process runs successfully but only the latency time is computed.Only users with the SYSDBA privilege can run this procedure. Qualified users must also turn on timed_statistics, and ensure asynch_io is enabled for datafiles.
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