Amazon Quantum Ledger Database (QLDB) is a managed ledger database management system. Its core storage architecture is an immutable and cryptographically verifiable transaction log. Unlike a blockchain DBMS where trust is distributed among participants, QLDB uses a centralized trusted authority (i.e., Amazon).
- Developer
- Country of Origin
- US
- Start Year
- 2018 [05]
- Project Type
- Commercial
- Operating System
- Hosted
- License
- Proprietary
Amazon Quantum Ledger Database (QLDB) is a managed ledger database management system. Its core storage architecture is an immutable and cryptographically verifiable transaction log. Unlike a blockchain DBMS where trust is distributed among participants, QLDB uses a centralized trusted authority (i.e., Amazon).
Data Model[03]
Amazon QLDB uses a document-oriented data model Ion, which is originally developed by Amazon for internal use (now open source). It is a superset of JSON in terms of types and validation, as it provides richer data types including int, float, decimal, and timestamp. It also has the capability of performing built-in validation by user-defined Ion Struct, which not only validates data type and range but also regex expressions if specified.
Ion is a strictly value-based model and supports embedded (hierarchical) documents, but not references.
Citations
5 sources- Relational Database – Amazon Aurora MySQL PostgreSQL – AWS amazon.com
- Relational Database – Amazon Aurora MySQL PostgreSQL Features – AWS amazon.com
- Specification github.io
- https://aws.amazon.com/blogs/opensource/announcing-partiql-one-query-language-for-all-your-data amazon.com
- Introducing Amazon Quantum Ledger Database (QLDB) - AWS amazon.com