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单项选择题Within the application MY_APP the following PREVIOUS VALUE expression references the sequence MY_SEQ: PREVIOUS VALUE FOR my_seq After which of the following events will the most recently generated value of MY_SEQ persist so that it can be returned to the active MY_APP application?（）

A、After a ROLLBACK is issued

B、After the sequence is altered

C、After the sequence is dropped

D、After the current session ends

  • A

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