Working with Neptune
One of the first things to understand about graph databases is how they store data and, specifically, how Neptune stores data. Unlike RDBMS and some NoSQL systems (such as DynamoDB), graph databases do not use Structured Query Language (SQL) for querying. Instead, Neptune supports two different graph query languages: Gremlin and SPARQL Protocol and RDF Query Language (SPARQL). You can only use one language at a time in your database, and each language has its own requirements for how the data will be stored within Neptune and how you can utilize it. If you use Gremlin, the data stored will be using the Property Graph data framework, and if you choose SPARQL, you will be using the Resource Description Framework (RDF). SPARQL looks similar to SQL with SELECT and INSERT statements, but has some major differences with how it handles WHERE clauses and the syntax. Gremlin will appear unfamiliar to database administrators (DBAs) as it uses a structure more similar to...