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Oracle认证考试

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You issued the following command: ALTER DATABASE ENABLE BLOCK CHANGE TRACKING;  What will be the result of issuing this command?()

  • A、 The block change tracking feature is enabled, and the information about the system change number is written in the change tracking file.
  • B、 The block change tracking feature is enabled, and the information about the log sequence number is written in the change tracking file.
  • C、 The block change tracking feature is enabled, and the information about the blocks that are changed since the last backup is written in the change tracking file.
  • D、 The block change tracking feature is enabled, and the information about the locations of the datafiles and the online redo log files are written in the change tracking file.
正确答案:C
答案解析:
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