Note
- In V4.3.x, this view was introduced in V4.3.5.
- In V4.2.1, this view was introduced in V4.2.1 BP7. In V4.2.x other than V4.2.1, this view was introduced in V4.2.5.
Purpose
The GV$OB_QUERY_RESPONSE_TIME_HISTOGRAM view is used to query the histogram information about the execution time of all queries on all nodes in the current tenant.
Columns
| Column | Type | Nullable? | Description |
|---|---|---|---|
| SVR_IP | VARCHAR2(46) | NO | The IP address of the node. |
| SVR_PORT | NUMBER(38) | NO | The port number of the node. |
| TENANT_ID | NUMBER(38) | NO | The ID of the tenant. |
| SQL_TYPE | VARCHAR2(128) | NO | The statement type of the query statement:
|
| RESPONSE_TIME | NUMBER | NO | The value of the response time in seconds. |
| COUNT | NUMBER(38) | NO | The number of queries in the corresponding time interval. |
| TOTAL | NUMBER | NO | The total time of queries in the corresponding time interval in seconds. |
Sample query
The following example queries the histogram information about the execution time of all queries on all nodes in the current tenant.
obclient [SYS]> SELECT * FROM SYS.GV$OB_QUERY_RESPONSE_TIME_HISTOGRAM WHERE ROWNUM = 2\G
The query result is as follows:
*************************** 1. row ***************************
SVR_IP: xx.xx.xx.xx
SVR_PORT: 2882
TENANT_ID: 1002
SQL_TYPE: SELECT
RESPONSE_TIME: 0.000001
COUNT: 0
TOTAL: 0.000000
*************************** 2. row ***************************
SVR_IP: xx.xx.xx.xx
SVR_PORT: 2882
TENANT_ID: 1002
SQL_TYPE: SELECT
RESPONSE_TIME: 0.000010
COUNT: 0
TOTAL: 0.000000
2 rows in set
The following example queries the histogram information about the execution time of TABLEAPI SELECT queries on all nodes in the current tenant.
obclient [SYS]> SELECT * FROM SYS.GV$OB_QUERY_RESPONSE_TIME_HISTOGRAM WHERE SQL_TYPE = "TABLEAPI SELECT" AND ROWNUM = 2\G
The query result is as follows:
*************************** 1. row ***************************
SVR_IP: 172.xx.xxx.225
SVR_PORT: 2882
TENANT_ID: 1004
SQL_TYPE: TABLEAPI SELECT
RESPONSE_TIME: 0.000001
COUNT: 0
TOTAL: 0.000000
*************************** 2. row ***************************
SVR_IP: 172.xx.xxx.225
SVR_PORT: 2882
TENANT_ID: 1004
SQL_TYPE: TABLEAPI SELECT
RESPONSE_TIME: 0.000010
COUNT: 0
TOTAL: 0.000000
2 rows in set