ALL_ENCRYPTED_COLUMNS displays encryption algorithm information for the encrypted columns in the tables accessible to the current user.
DBA_ENCRYPTED_COLUMNS displays encryption algorithm information for all encrypted columns in the database.
USER_ENCRYPTED_COLUMNS displays encryption algorithm information for the encrypted columns in the tables owned by the current user. This view does not display the OWNER column.
| Column | Datatype | NULL | Description | 
|---|---|---|---|
| OWNER | VARCHAR2(30) | NOT NULL | Owner of the table | 
| TABLE_NAME | VARCHAR2(30) | NOT NULL | Name of the table | 
| COLUMN_NAME | VARCHAR2(30) | NOT NULL | Name of the column | 
| ENCRYPTION_ALG | VARCHAR2(29) | Encryption algorithm used to protect secrecy of data in this column: 
 | |
| SALT | VARCHAR2(3) | Indicates whether the column is encrypted with SALT ( YES) or not (NO) |