Services or capabilities described in AWS documentation might vary by Region. To see the differences applicable to the AWS European Sovereign Cloud Region, see the AWS European Sovereign Cloud User Guide.Transaction Semantics in Neptune
Amazon Neptune is designed to support highly concurrent online transactional processing
(OLTP) workloads over data graphs. The W3C
SPARQL Query Language for RDF specification and the Apache TinkerPop Gremlin Graph Traversal
Language documentation do not define transaction semantics for concurrent query
processing. Because ACID support and well-defined transaction guarantees can be very
important, we enforce strict semantics to help avoid data anomalies.
This section defines these semantics and illustrates how they apply to some common use
cases in Neptune.