ALL_PART_KEY_COLUMNS describes the partitioning key columns for the partitioned objects accessible to the current user.
DBA_PART_KEY_COLUMNS describes the partitioning key columns for all partitioned objects in the database.
USER_PART_KEY_COLUMNS describes the partitioning key columns for the partitioned objects owned by the current user. This view does not display the OWNER column.
| Column | Datatype | NULL | Description | 
|---|---|---|---|
| OWNER | VARCHAR2(30) | Owner of the partitioned table or index | |
| NAME | VARCHAR2(30) | Name of the partitioned table or index | |
| OBJECT_TYPE | CHAR(5) | Object type: 
 | |
| COLUMN_NAME | VARCHAR2(4000) | Name of the column | |
| COLUMN_POSITION | NUMBER | Position of the column within the partitioning key |