SAP ASE automatically performs encryption and decryption when you process data in
encrypted columns. SAP ASE encrypts data when you update or insert data into an
encrypted column, and decrypts data when you select it or use it in a
where clause.
Encrypted Columns Process
When you issue a select, insert, update, or delete command against an encrypted column, SAP ASE automatically encrypts or decrypts the data using the encryption key associated with the encrypted column.