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OceanBase DatabaseYou can call this function to return the time zone of the current database instance. In OceanBase Database, the database time zone is fixed to +00:00 and cannot be modified.
DBTIMEZONE
The return type is VARCHAR2.
The following example returns the time zone of the current database instance.
obclient> SELECT DBTIMEZONE FROM DUAL;
+------------+
DBTIMEZONE
+------------+
+00:00
+------------+
1 row in set