Cheat sheet

This cheat sheet summarizes the main key points from this chapter, as follows:

• Neptune is a graph database optimized for storing and querying connections between items.
• You can use the Neptune Bulk Loader to import data in various formats from an S3 bucket using S3 endpoints.
• Neptune supports querying using the SPARQL language, which is similar to SQL, as well as Gremlin, which is a specific graph querying language.
• Neptune is a highly redundant, fully managed database system with options for both Multi-AZ and cross-region replication using Neptune Streams.
• QLDB is an immutable centralized ledger database optimized for workloads that require verifiable data chains with all historic versions and modifications.
• QLDB uses the PartiQL query language and returns data in Amazon ION format.
• QLDB does not offer any backup or restore functionality, but you can export to S3.
• QLDB scales automatically, so you do not need to provision compute or...