数据库自带加密：某些数据库自身提供了加密机制，在数据库内核实现了存储的加密。
Database encryption: some of the database itself provides encryption mechanism in the database kernel to achieve the storage of encryption.
数据库透明加密是指对库内数据的加密和解密，对数据库的访问程序是完全无感知的。
Transparent database encryption refers to the encryption and decryption of data in the database, the database access program is completely unaware.
数据库加密是指将存储于数据库中的数据，尤其是敏感数据，以加密的方式进行存储。
Database encryption refers to the data stored in the database, especially sensitive data, stored in an encrypted manner.
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