Note
This view is available starting with V4.3.0.
Purpose
The USER_MVREF_STATS_SYS_DEFAULTS view displays the system-wide default values of the statistics attributes for the history of materialized view refreshes.
Columns
| Column | Type | Nullable | Description |
|---|---|---|---|
| PARAMETER_NAME | CHAR(16) | NO | The name of the parameter. Valid values:
|
| VALUE | VARCHAR2(40) | NO | The system-wide default value of the parameter. |
Sample query
obclient [test_db]> SELECT * FROM SYS.USER_MVREF_STATS_SYS_DEFAULTS;
The query result is as follows:
+------------------+---------+
| PARAMETER_NAME | VALUE |
+------------------+---------+
| COLLECTION_LEVEL | TYPICAL |
| RETENTION_PERIOD | 31 |
+------------------+---------+
2 rows in set (0.007 sec)