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Database encryption is a process that is used to protect the confidentiality of data stored in a database. It involves using an encryption algorithm and a secret key to transform the data in the database into a form that is unreadable without the appropriate key.
Database encryption is often used to protect sensitive data, such as personal information, financial records, and confidential business data. It can be implemented at various levels, including at the field level (where individual data elements within a database are encrypted), at the table level (where entire tables of data are encrypted), or at the database level (where the entire database is encrypted).