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Oracle® Database Reference
11g Release 2 (11.2)

Part Number E17110-04
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DBA_HIST_ENQUEUE_STAT

DBA_HIST_ENQUEUE_STAT displays historical statistics on the number of enqueue (lock) requests for each type of lock. This view contains snapshots of V$ENQUEUE_STATISTICS.

Column Datatype NULL Description
SNAP_ID NUMBER NOT NULL Unique snapshot ID
DBID NUMBER NOT NULL Database ID for the snapshot
INSTANCE_NUMBER NUMBER NOT NULL Instance number for the snapshot
EQ_TYPE VARCHAR2(2) NOT NULL Type of enqueue requested
REQ_REASON VARCHAR2(64) NOT NULL Reason for the enqueue request
TOTAL_REQ# NUMBER   Total number of enqueue requests or enqueue conversions for this type of enqueue
TOTAL_WAIT# NUMBER   Total number of times an enqueue request or conversion resulted in a wait
SUCC_REQ# NUMBER   Number of times an enqueue request or conversion was granted
FAILED_REQ# NUMBER   Number of times an enqueue request or conversion failed
CUM_WAIT_TIME NUMBER   Total amount of time (in milliseconds) spent waiting for the enqueue or enqueue conversion
EVENT# NUMBER   Event number