唤醒调整
Which two statements are true regarding the starting of the database instance using the following command?（） SQL>STARTUP UPGRADE It enables all system triggers.。 It allows only SYSDBA connections.。 It ensures that all job queues remain active during the upgrade process.。 It sets system initialization parameters to specific values that are required to enable database upgrade scripts to be run.。
患者，男性，42岁。因“急性梗阻性化脓性胆管炎”急诊人院，患者寒战、高热，体温高达41℃，脉搏112/min，血压85/65mmHg，其休克类型是（） 感染性休克。 低血容量性休克。 心源性休克。 神经性休克。 过敏性休克。
Your database is running under automatic undo management and the UNDO_RETENTION parameter is set to 900 sec. You executed the following command to enable retention guarantee： SQL> ALTER TABLESPACE undotbs1 RETENTION GUARANTEE; What effect would this statement have on the database？（） The extents in undo tablespace retain data until the next full database backup.。 The extents containing committed data in the undo tablespace are never overwritten.。 The extents which no longer contain uncommitted data in the undo tablespace are not overwritten for at least15 minutes.。 The extents containing committed data in the undo tablespace are not overwritten until the instance is shut down.。
货车厂、段修时，比例阀质量保证期限为（）。 6个月。 1年。 1个辅修期。 1个段修期。
Which of the following commands will display a snapshot of cluster status， including details of current networkstatus and resource group fallover/fallback policies？（）
