单选题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
单选题
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
参考解析
解析：
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