本文深入探讨了Exadata中与'dbfileparallelread'类似的等待事件，通常发生在非连续块的多块读取过程中。重点分析了与之相关的常见操作，如索引范围扫描、索引唯一扫描和通过ROWID查找。
This is an Exadata wait event similar to 'db file parallel read' and normally occurs during multi-block reads of non-contiguous blocks. The most common operations associated with this wait event are index range scans, index unique scans and lookups by rowid.
Solutions
Review solutions for db file parallel read for more information.
转载于:https://www.cnblogs.com/macleanoracle/archive/2013/03/19/2967867.html
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