1. Database Reference
  2. Dynamic Performance Views
  3. Dynamic Performance (V$) Views: V$ACCESS to V$HVMASTER_INFO
  4. V$ENQUEUE_STAT

7.196 V$ENQUEUE_STAT

V$ENQUEUE_STAT displays statistics on the number of enqueue (lock) requests for each type of lock.

Column Datatype Description

INST_ID

NUMBER

ID of the instance

EQ_TYPE

VARCHAR2(2)

Type of enqueue requested

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

CON_ID

NUMBER

The ID of the container to which the data pertains. 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