Amazon Quantum Ledger Database (QLDB) - Fully managed ledger database that provides a transparent, immutable, and cryptographically verifiable transaction log. Owned by a central trusted authority.

Amazon QLDB is a fully managed ledger database that provides a transparent, immutable, and cryptographically verifiable transaction log ‎owned by a central trusted authority. Amazon QLDB can be used to track each and every application data change and maintains a complete and verifiable history of changes over time.

Ledgers are typically used to record a history of economic and financial activity in an organization. Many organizations build applications with ledger-like functionality because they want to maintain an accurate history of their applications' data, for example, tracking the history of credits and debits in banking transactions, verifying the data lineage of an insurance claim, or tracing movement of an item in a supply chain network. Ledger applications are often implemented using custom audit tables or audit trails created in relational databases. However, building audit functionality with relational databases is time-consuming and prone to human error. It requires custom development, and since relational databases are not inherently immutable, any unintended changes to the data are hard to track and verify. Alternatively, blockchain frameworks, such as Hyperledger Fabric and Ethereum, can also be used as a ledger. However, this adds complexity as you need to set-up an entire blockchain network with multiple nodes, manage its infrastructure, and require the nodes to validate each transaction before it can be added to the ledger.

Amazon QLDB is a new class of database that eliminates the need to engage in the complex development effort of building your own ledger-like applications. With QLDB, your data’s change history is immutable – it cannot be altered or deleted – and using cryptography, you can easily verify that there have been no unintended modifications to your application’s data. QLDB uses an immutable transactional log, known as a journal, that tracks each application data change and maintains a complete and verifiable history of changes over time. QLDB is easy to use because it provides developers with a familiar SQL-like API, a flexible document data model, and full support for transactions. QLDB’s streaming capability provides a near real-time flow of your data stored within QLDB, allowing you to develop event-driven workflows, real-time analytics, and to replicate data to other AWS services to support advanced analytical processing. QLDB is also serverless, so it automatically scales to support the demands of your application. There are no servers to manage and no read or write limits to configure. With QLDB, you only pay for what you use. (June, 2020) Retrieved from: https://aws.amazon.com/qldb/.


SINProduct NumberGSA Price/Unit
Includes IFF		UnitPrice DescriptionProduct Description
518210CHPVSMWVJRYNF9GVK0.0000001346IOs$0.136 per million read IO requests in US East (N. Virginia)US East (N. Virginia) Location OnDemand QLDB IOs
518210CRGKUPVX9FDRGBV8R0.0000006930IOs$0.700 per million write IO requests in US East (N. Virginia)US East (N. Virginia) Location OnDemand QLDB IOs
518210C27SKA97EXH578BEY0.2475000000GB-month$0.24750 per GB-month for indexed storage in US East (N. Virginia)US East (N. Virginia) Location OnDemand QLDB Storage
518210CFZ2664DQQENGAFNW0.0297000000GB-month$0.02970 per GB-month for journal storage in US East (N. Virginia)US East (N. Virginia) Location OnDemand QLDB Storage
518210C6JBXKK2ZMRKDY6JZ0.0000006930IOs$0.700 per million write IO requests in US East (Ohio)US East (Ohio) Location OnDemand QLDB IOs
518210CDM26VDHUYGWQEMDH0.0000001346IOs$0.136 per million read IO requests in US East (Ohio)US East (Ohio) Location OnDemand QLDB IOs
518210C378UWR2HBJFNSVNN0.2475000000GB-month$0.24750 per GB-month for indexed storage in US East (Ohio)US East (Ohio) Location OnDemand QLDB Storage
518210C9MW5RMN2T89NCAEK0.0297000000GB-month$0.02970 per GB-month for journal storage in US East (Ohio)US East (Ohio) Location OnDemand QLDB Storage
518210CS6EX8GWMNEZNZZJM0.0000001346IOs$0.136 per million read IO requests in US West (Oregon)US West (Oregon) Location OnDemand QLDB IOs
518210CXACNTK7JGCG4WTM80.0000006930IOs$0.700 per million write IO requests in US West (Oregon)US West (Oregon) Location OnDemand QLDB IOs
518210C2K4X2RCWKAPV4JPB0.2475000000GB-month$0.24750 per GB-month for indexed storage in US West (Oregon)US West (Oregon) Location OnDemand QLDB Storage
518210CG7YJ9SM7VFTUXCXX0.0297000000GB-month$0.02970 per GB-month for journal storage in US West (Oregon)US West (Oregon) Location OnDemand QLDB Storage


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