Learning about additional database services for specific niche requirements

In addition to Amazon RDS and DynamoDB, AWS also offers additional databases that meet the requirements of specific niche applications. In this section, we will take a look at two of those databases: Amazon Neptune and Amazon Quantum Ledger Database (QLDB).

Introduction to Amazon Neptune

Amazon Neptune is a fully managed graph database service and a type of NoSQL database. Graph databases are designed to store data as nodes (person, place, location, and so on) and directions. Each node would have some property and nodes have relationships between them. So, for example, Alice lives in London, and in London, there is a resident called Alice. This is a simple example, but you can start to imagine how complex your nodes and their relationships can become. These kinds of complex relationships between the nodes are just as important as the data itself and are ideal for a graph database solution. Traditional...