Skip Headers
Oracle® Database Reference
11g Release 1 (11.1)

Part Number B28320-01
Go to Documentation Home
Home
Go to Book List
Book List
Go to Table of Contents
Contents
Go to Index
Index
Go to Master Index
Master Index
Go to Feedback page
Contact Us

Go to previous page
Previous
Go to next page
Next
View PDF

DBA_HIST_LATCH_MISSES_SUMMARY

DBA_HIST_LATCH_MISSES_SUMMARY displays historical summary statistics about missed attempts to acquire a latch. This view contains snapshots of V$LATCH_MISSES.

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
PARENT_NAME VARCHAR2(50)   Latch name of a parent latch
WHERE_IN_CODE VARCHAR2(64)   Location that attempted to acquire the latch
NWFAIL_COUNT NUMBER   Number of times that no-wait acquisition of the latch failed
SLEEP_COUNT NUMBER   Number of times that acquisition attempts caused sleeps
WTR_SLP_COUNT NUMBER   Number of times a waiter slept