DynamoDB is a NoSQL database service. It’s a global service, partitioned regionally and allows the creation of tables.
Amazon DynamoDB
Amazon Aurora
Aurora is a database engine developed by AWS that is compatible with MySQL, PostgreSQL and associated tools. Fully managed, highly available, relational database engine.
Relational Database Service (RDS)
RDS is a Database as a Service (DBaaS) product. It can be used to provision a fully functional database without the admin overhead traditionally associated with DB platforms. It can perform at scale, be made publicly accessible, and can be configured for demanding availability and durability scenarios.
Databases Fundamentals
Relational database management systems (RDBMS) are used when the data to be managed has formal and fixed relationships. Data is stored on disk as “rows,” and entire rows must be parsed even if individual attributes are all that’s needed. Reading one attribute from 10,000 records requires 10,000 rows to be read from the disk.
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