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- 单项选择题 You used the IMMEDIATE option to shut down your database instance. Consider the steps that mayoccur when a database instance is started and database is opened: 1:SGA is allocated. 2:Control file is read. 3:Redo log files are opened. 4:Instance recovery is started. 5:Background processes are started. 6:Data file headers are checked for consistency. 7:Server parameter file or the initialization parameter file is read. Which option has the correct order in which these steps occur()
A、7,1,5,2,3,6,4
B、1,5,7,2,3,6;step 4 is not required
C、7,1,5,2,3,6;step 4 is not required
D、1,2,3,5,6,4;step 7 is not required
- C
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