DBA_RGROUP displays all refresh groups.
| Column | Datatype | NULL | Description | 
|---|---|---|---|
| REFGROUP | NUMBER | Internal identifier of the refresh group | |
| OWNER | VARCHAR2(30) | NOT NULL | Owner of the object in the refresh group | 
| NAME | VARCHAR2(30) | NOT NULL | Name of the object in the refresh group | 
| IMPLICIT_DESTROY | VARCHAR2(1) | Indicates whether the refresh group is destroyed when its last item is removed ( Y) or not (N) | |
| PUSH_DEFERRED_RPC | VARCHAR2(1) | Indicates whether changes are pushed from the snapshot to the master before refresh ( Y) or not (N) | |
| REFRESH_AFTER_ERRORS | VARCHAR2(1) | Indicates whether to proceed with refresh despite errors when pushing deferred RPCs ( Y) or not (N) | |
| ROLLBACK_SEG | VARCHAR2(30) | Name of the rollback segment to use while refreshing | |
| JOB | NUMBER | NOT NULL | Identifier of the job used to refresh the group automatically | 
| PURGE_OPTION | NUMBER(38) | Method for purging the transaction queue after each push. 1indicates quick purge option;2indicates precise purge option | |
| PARALLELISM | NUMBER(38) | Level of parallelism for transaction propagation | |
| HEAP_SIZE | NUMBER(38) | Size of the heap |