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
CON_DBID	NUMBER		The database ID of the PDB for the sampled session
CON_ID	NUMBER		The ID of the container that CON_DBID identifies. Possible values include: 0: This value is used for rows containing data that pertain to the entire CDB. This value is also used for rows in non-CDBs. 1: This value is used for rows containing data that pertain to only the root n: Where n is the applicable container ID for the rows containing data