您将发现，与用于关系数据和索引的已有的计数器相对应，DB 29为XML数据提供了新的缓冲池快照监视器元素。
You will find that DB2 9 offers new buffer pool snapshot monitor elements for XML data that match the existing counters for relational data and indexes.
问题查询：这些查询只返回超过重要性能计数器阈值的行，例如缓冲池命中率不到90%的行。
Problem queries: These queries return only rows that exceed thresholds for important performance counters, for example, rows with buffer pool hit ratio lower than 90%.
然后再将寄存器127用作循环计数器，将寄存器126用作基指针，并在每个值上执行convert _ to_upper，直到到达缓冲区的底部为止。
You then use register 127 as your loop counter and register 126 as your base pointer, and perform convert_to_upper on each value until you get to the end of the buffer.
然后再将寄存器127用作循环计数器，将寄存器126用作基指针，并在每个值上执行convert _ to_upper，直到到达缓冲区的底部为止。
You then use register 127 as your loop counter and register 126 as your base pointer, and perform convert_to_upper on each value until you get to the end of the buffer.
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