1. Amazon Neptune :
Amazon Neptune is a fast, reliable graph database built for the cloud product by Amazon.com. It is part of Amazon Web Services (AWS). It was announced on November 29, 2017. It supports both the open-source Apache TinkerPop Gremlin graph traversal language. It allows the user to encrypt databases using keys created through AWS Key Management Service.
2. Amazon SimpleDB :
It is a hosted simple database service by Amazon, with the data stored in the Amazon Cloud. It is Amazon is a web service for running queries on structured data in real-time. This database is written in Erlang by Amazon.com. It has the following features – high availability and flexibility, with little or no administrative burden.
Difference between Amazon Neptune and Amazon SimpleDB :
|S.NO.||Amazon Neptune||Amazon SimpleDB|
|1.||Developed By Amazon in 2017.||Developed By Amazon in 2007.|
|2.||It is a fast, reliable graph database built for the cloud product by Amazon.com||It is a hosted simple database service by Amazon, with the data stored in the Amazon Cloud.|
|3.||It supports the ACID property.||It does not support the ACID property.|
|4.||It provides the concept of Referential Integrity. Hence, there are Foreign Keys.||It does not provide the concept of Referential Integrity. Hence, no Foreign Keys.|
|5.||Its Primary database model is Graph DBMS and RDF store.||Its primary database model is the Key-value store.|
|6.||Immediate Consistency is used to ensure consistency in a distributed system.||Eventual Consistency and Immediate Consistency is used to ensure consistency in a distributed system.|
|7.||It does not support partitioning methods.||It also does not support partitioning methods but Sharding must be implemented in the application.|
|8.||It supports multi-availability zones high availability.||It supports replication methods.|
|9.||It supports predefined data types such as float or date.||It does not support predefined data types such as float or date.|
|10.||It supports secondary indexes.||It does not support secondary indexes.|
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