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Oracle® Database Reference
10g Release 2 (10.2)

Part Number B14237-04
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DBA_HIST_STREAMS_POOL_ADVICE

DBA_HIST_STREAMS_POOL_ADVICE displays historical information about the estimated count of spilled or unspilled messages and the associated time spent in the spill or unspill activity for different Streams pool sizes. This view is intended for use with Automatic Workload Repository (AWR).

Column Datatype NULL Description
SNAP_ID NUMBER NOT NULL Unique snapshot ID
DBID NUMBER NOT NULL Database ID of the snapshot
INSTANCE_NUMBER NUMBER NOT NULL Instance number of the snapshot
SIZE_FOR_ESTIMATE NUMBER NOT NULL Pool size for the estimate (in megabytes)
SIZE_FACTOR NUMBER   Size factor with respect to the current pool size
ESTD_SPILL_COUNT NUMBER   Estimated count of messages spilled from the Streams pool
ESTD_SPILL_TIME NUMBER   Estimated elapsed time (in seconds) to spill
ESTD_UNSPILL_COUNT NUMBER   Estimated count of unspills (read back from disk)
ESTD_UNSPILL_TIME NUMBER   Estimated elapsed time (in seconds) to unspill