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Examine the following command; ALTER SYSTEM SET enable_ddl_logging = TRUE; Which statement is true?（）
A:Only the data definition language (DDL) commands that resulted in errors are logged in the alert log file.
B:All DDL commands are logged in the alert log file.
C:All DDL commands are logged in a different log file that contains DDL statements and their execution dates.
D:Only DDL commands that resulted in the creation of new segments are logged.
E:All DDL commands are logged in XML format in the alert directory under the Automatic Diagnostic Repository (ADR) home.

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出自：Oracle认证

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