缓冲池数据物理读数(以表空间页宽为单位定义)。

Buffer pool data physical reads (defined in units of tablespace page size).

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缓冲池索引物理读数(以表空间页宽为单位定义)。

Buffer pool index physical reads (defined in units of tablespace page size).

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缓冲池x da物理读数(以表空间页宽为单位定义)。

Buffer pool xda physical reads (defined in units of tablespace page size).

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