Amazon Quantum Ledger Database (QLDB)

Amazon Quantum Ledger Database (QLDB) is a purpose-built and fully managed ledger database service that maintains an accurate history of changes made to an application for business and regulatory purposes. It works on blockchain technology where multiple parties are working on the same data, and we need to keep track of transactions made by every party and verify the data’s authenticity. This data can never be overwritten or deleted, allowing us to backtrack all the changes on a transaction. 

Amazon QLDB is highly available, replicates the data across 3 AZs, and uses PartiQL query language. It offers an immutable and cryptographically verifiable ledger database. It is designed to provide a transparent, tamper-evident history of data changes, making it an ideal solution for applications where maintaining an accurate and unalterable record is essential.

QLDB core components

Because it’s a ledger database, its components and functionality are different than other databases. Let’s have a brief of these components below: ...