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Examine the following commands for redefining a table with Virtual Private Database (VPD) policies: Which two statements are true about redefining the table?（）
A:All the triggers for the table are disabled without changing any of the column names or column types in the table.
B:The primary key constraint on the EMPLOYEES table is disabled during redefinition.
C:VPD policies are copied from the original table to the new table during online redefinition.
D:You must copy the VPD policies manually from the original table to the new table during online redefinition.

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出自：Oracle认证

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