Which two statements are true regarding the starting of the database instance using the following command?() SQL>STARTUP UPGRADE
- A、 It enables all system triggers.
- B、 It allows only SYSDBA connections.
- C、 It ensures that all job queues remain active during the upgrade process.
- D、 It sets system initialization parameters to specific values that are required to enable database upgrade scripts to be run.
正确答案:B,D
答案解析:有
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