Part of the SQL Server 2022 blog series.
We are pleased to introduce you to ledger, a new technology that uses the power of blockchain to offer a tamper-proof record of data modifications. Currently in Azure SQL, this feature is also part of the SQL Server 2022 release.
We’re making the data in SQL verifiable using the same cryptographic patterns seen in blockchain technology, while keeping the flexibility and performance of a traditional database. Ledger is centrally managed, and you can cryptographically attest to other parties that your data can be trusted and hasn’t been tampered with.
The ledger and the historical data are managed transparently, offering protection without any application changes. In addition, historical data is maintained in a relational form to support SQL queries for auditing, forensics, and other applications.
Make sure to read the full blog post, Ledger now generally available in Azure SQL Database, to learn more about ledger and download the SQL Server 2022 preview today.