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Oracle® Database Reference
11g Release 2 (11.2)
Part Number E10820-02
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DBA_HIST_WAITSTAT

DBA_HIST_WAITSTAT displays historical block contention statistics. This view contains snapshots of V$WAITSTAT.

Column Datatype NULL Description
SNAP_ID NUMBER   Unique snapshot ID
DBID NUMBER   Database ID for the snapshot
INSTANCE_NUMBER NUMBER   Instance number for the snapshot
CLASS VARCHAR2(18)   Class of the block
WAIT_COUNT NUMBER   Number of waits by the OPERATION for this CLASS of block
TIME NUMBER   Sum of all wait times for all the waits by the OPERATION for this CLASS of block

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