| Oracle® Database Reference 11g Release 2 (11.2) Part Number E25513-03 | 
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ALL_DIM_JOIN_KEY describes the joins between two dimension tables that are accessible to the current user. The join is always specified between a parent dimension level column and a child column.
DBA_DIM_JOIN_KEY describes all such joins in the database.
USER_DIM_JOIN_KEY describes all such joins owned by the current user.
| Column | Datatype | NULL | Description | 
|---|---|---|---|
| OWNER | VARCHAR2(30) | NOT NULL | Owner of the dimension | 
| DIMENSION_NAME | VARCHAR2(30) | NOT NULL | Name of the dimension | 
| DIM_KEY_ID | NUMBER | NOT NULL | Join key ID (unique within a dimension) | 
| LEVEL_NAME | VARCHAR2(30) | Name of the hierarchy level | |
| KEY_POSITION | NUMBER | NOT NULL | Ordinal position of the key column within the level | 
| HIERARCHY_NAME | VARCHAR2(30) | Name of the hierarchy | |
| CHILD_JOIN_OWNER | VARCHAR2(30) | NOT NULL | Owner of the join column table | 
| CHILD_JOIN_TABLE | VARCHAR2(30) | NOT NULL | Name of the join column table | 
| CHILD_JOIN_COLUMN | VARCHAR2(30) | NOT NULL | Name of the join column | 
| CHILD_LEVEL_NAME | VARCHAR2(30) | Name of the child hierarchy level of the join key |