V$ENCRYPTED_TABLESPACES displays information about the tablespaces that are encrypted.
| Column | Datatype | Description | 
|---|---|---|
| TS# | NUMBER | Tablespace number | 
| ENCRYPTIONALG | VARCHAR2(7) | Encryption algorithm: 
 | 
| ENCRYPTEDTS | VARCHAR2(3) | Indicates whether the tablespace is encrypted ( YES) or not (NO) |