Note
This view was introduced in OceanBase Database V4.2.2.
Purpose
The oceanbase.DBA_OB_SYS_VARIABLES view displays the system variable settings of the current tenant, including hidden variables whose names start with an underscore.
Columns
Column |
Type |
Nullable? |
Description |
|---|---|---|---|
| CREATE_TIME | timestamp(6) | YES | The time when the system variable was created. |
| MODIFY_TIME | timestamp(6) | YES | The time when the system variable was last modified. |
| NAME | varchar(128) | NO | The name of the system variable. |
| VALUE | varchar(65536) | YES | The current value of the system variable. |
| MIN_VALUE | varchar(65536) | NO | The minimum value of the system variable. |
| MAX_VALUE | varchar(65536) | NO | The maximum value of the system variable. |
| SCOPE | varchar(16) | NO | The level of the system variable. |
| INFO | varchar(4096) | NO | The comments. |
| DEFAULT_VALUE | varchar(65536) | YES | The default value of the system variable. |
| ISDEFAULT | varchar(3) | NO | Indicates whether the current value is the default value. |
Sample query
Query the ob_query_timeout system variable of the current tenant.
obclient [oceanbase]> SELECT * FROM oceanbase.DBA_OB_SYS_VARIABLES WHERE NAME='ob_query_timeout';
The query result is as follows:
+----------------------------+----------------------------+------------------+----------+-----------+-----------+------------------+----------------------------------+---------------+-----------+
| CREATE_TIME | MODIFY_TIME | NAME | VALUE | MIN_VALUE | MAX_VALUE | SCOPE | INFO | DEFAULT_VALUE | ISDEFAULT |
+----------------------------+----------------------------+------------------+----------+-----------+-----------+------------------+----------------------------------+---------------+-----------+
| 2024-07-23 15:16:40.982646 | 2024-07-23 15:16:40.982646 | ob_query_timeout | 10000000 | | | GLOBAL | SESSION | Query timeout in microsecond(us) | 10000000 | YES |
+----------------------------+----------------------------+------------------+----------+-----------+-----------+------------------+----------------------------------+---------------+-----------+
1 row in set