Difference between Amazon DynamoDB and Amazon SimpleDB
1. Amazon DynamoDB :
Amazon DynamoDB is a fully-managed database and supports both document and key-value data models. Features are as follows – fast and flexible NoSQL database service for all applications that need consistent, single-digit millisecond latency at any scale. It is a hosted, scalable database service by Amazon with the data stored in the Amazon cloud.
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 DynamoDB and Amazon SimpleDB :
||Developed By Amazon in 2012.
||Developed By Amazon in 2007.
||It is a hosted, scalable database service by Amazon with the data stored in the Amazon cloud.
||It is a hosted simple database service by Amazon, with the data stored in the Amazon Cloud.
||It supports the ACID property.
||It does not support the ACID property.
||It supports predefined data types such as float or date
||It does not support predefined data types such as float or date
||Its Primary database model is Document store and Key-value store.
||Its primary database model is the Key-value store.
||It does not offers an API for user-defined Map/Reduce methods. But maybe implemented via Amazon Elastic MapReduce (Amazon EMR).
||It does not offer an API for user-defined Map/Reduce methods.
||It supports sharding as a partitioning method.
||It does not support partitioning methods.
||It supports secondary indexes.
||It also supports secondary indexes and all columns are indexed automatically.
||The programming languages supported are .Net, C, Erlang, C++, Java, PHP, Python, Scala, and Ruby.
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