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