1.亚马逊海王星：
Amazon Neptune 是 Amazon.com 为云产品构建的快速、可靠的图形数据库。它是亚马逊网络服务 (AWS) 的一部分。它于 2017 年 11 月 29 日宣布。它同时支持开源 Apache TinkerPop Gremlin 图遍历语言。它允许用户使用通过 AWS Key Management Service 创建的密钥加密数据库。
2.亚马逊红移：
Amazon Redshift 是一种高效的解决方案，用于收集和存储您的所有数据，并使您能够对其进行分析。它是一种与商业智能工具一起使用的大规模数据仓库服务。 Amazon Redshift 的功能 – 快速、简单、经济高效的数据仓库服务。它构成了更大的云计算平台 Amazon Web Services 的一部分。
Amazon Neptune 和 Amazon Redshift 之间的区别：
| S.NO. | Amazon Neptune | Amazon Redshift |
|---|---|---|
| 1. | It was developed by Amazon in 2017. | It was developed by Amazon in 2012. |
| 2. | It is fast, reliable graph database built for cloud product by Amazon.com. | It is large scale data warehouse service for use with business intelligence tools. |
| 3. | It supports schema-free Data scheme. | It supports simple Data scheme. |
| 4. | It does not support secondary indexes. | It supports restricted secondary indexes. |
| 5. | Its Primary database models are Graph DBMS and RDF store. | Its primary database model is Relational DBMS. |
| 6. | It does not support Server-side scripting. | It supports user-defined functions for Server-side scripting in python. |
| 7. | It does not support partitioning methods. | It supports partitioning methods with Sharding. |
| 8. | It does not support SQL query language. | It supports SQL query language. But it does not fully support SQL-standard. |
| 9. | It supports multi-availability zones high availability. | It also supports replication methods. |