db file sequential read等待P1参数的含义是？（）A、访问的文件名B、访问的文件号C、访问的数据块号D、文件拥有者
db file sequential read等待P1参数的含义是？（）
- A、访问的文件名
- B、访问的文件号
- C、访问的数据块号
- D、文件拥有者
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单选题One of the tablespaces is read-only in your database. The loss of all control files forced you to re-create the control file. Which operation do you need to perform after re-creating the control file and opening the database？（）A drop and re-create the read-only tablespacesB rename the read-only data files to their correct file namesC change the tablespace status from read/write to read-onlyD re-create the read-only tablespace because it is automatically removed
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单选题在oracle数据库中，db file sequential read等待P2参数的含义是？（）A访问的文件名B访问的文件号C文件拥有者D访问的数据块号