AWS databases

options

1. RDS: fully managed RDBMS
2. Elastic cache: in-memory cache; Redis or MemCached.
3. DynamoDB: NoSQL; highly scalable; fault tolerant; event-driven; replicated over multiple AZs.
4. Redshift: petabyte-scale data warehouse; SQL complaint; event driven; fault tolerant; replicated over multiple AZs.
5. Neptune: graph database; optimized for relationships (joins); replicated over multiple AZs. continuous backups; read replicas;
6. TimeStream: time-series database; records trillions of events per day; built-in analytic functions;
7. QLDB Quantum Ledger Database: ledger database; storing financial transactions; append-only immutable journal; centralized;