Tuesday, June 14, 2011

Partition Is Accessed Extensively Wait

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A large percentage of In Oracle time for the object is spent accessing one partition.
Partition Is Accessed Extensively findings

Description
What to do next
Perform the following options:
n   Examine the In Oracle activity of the partition, in the Partitions tab. Check if the massive activity spent accessing the partition is abnormal.
n   Examine the activity of statements accessing the partition in the Activity workspace.
Advice
Perform one of the following options:
If the partition is a table partition:
n   Create local or global indexes for statements that access the partition.
n   Subpartition the partitions.
n   If the partitions are not balanced well, consider building the partitioned table with new partition keys.
If the partition is an index partition:
n   Subpartition the partitions.
n   Add more columns to the index to improve filtering.



  
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