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Examine the following command that is executed for the TRANSPORT table in the SH schema: Which statement describes the significance of this command?（）
A:It collects statistics into the pending area in the data dictionary
B:It creates a virtual hidden column in the CUSTOMERS_OBE table
C:It collects statistics with AUTO_SAMPLE_SIZE for ESTIMATE_PERCENT
D:It creates a histogram to hold skewed information about the data in the columns

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出自：Oracle认证

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