V$MVREFRESH displays information about the materialized views currently being refreshed.
| Column | Datatype | Description | 
|---|---|---|
| SID | NUMBER | Session identifier | 
| SERIAL# | NUMBER | Session serial number, which is used to uniquely identify a session's objects. Guarantees that session-level commands are applied to the correct session objects if the session ends with, and another session begins with, the same session ID. | 
| CURRMVOWNER | VARCHAR2(31) | Owner of the materialized view currently being refreshed. The materialized view resides in this user's schema. | 
| CURRMVNAME | VARCHAR2(31) | Name of the materialized view currently being refreshed |