ALL_UNUSED_COL_TABS describes all tables accessible to the current user that contain unused columns.
DBA_UNUSED_COL_TABS describes all tables in the database that contain unused columns.
USER_UNUSED_COL_TABS describes all tables owned by the current user that contain unused columns. This view does not display the OWNER column.
| Column | Datatype | NULL | Description |
|---|---|---|---|
OWNER |
VARCHAR2(30) |
NOT NULL |
The owner of the object |
TABLE_NAME |
VARCHAR2(30) |
NOT NULL |
The name of the table |
COUNT |
NUMBER |
The number of unused columns |