DBMS > Amazon SimpleDB vs. Hazelcast vs. IBM Cloudant vs. STSdb

System Properties Comparison Amazon SimpleDB vs. Hazelcast vs. IBM Cloudant vs. STSdb

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Editorial information provided by DB-Engines
Name	Amazon SimpleDB  Xexclude from comparison	Hazelcast  Xexclude from comparison	IBM Cloudant  Xexclude from comparison	STSdb  Xexclude from comparison
Description	Hosted simple database service by Amazon, with the data stored in the Amazon Cloud. There is an unrelated product called SimpleDB developed by Edward Sciore	A widely adopted in-memory data grid	Database as a Service offering based on Apache CouchDB	Key-Value Store with special method for indexing optimized for high performance using a special indexing method
Primary database model	Key-value store	Key-value store	Document store	Key-value store
Secondary database models		Document store JSON support with IMDG 3.12
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 2.10 Rank #122   Overall #24   Key-value stores	Score 10.38 Rank #48   Overall #6   Key-value stores	Score 3.26 Rank #95   Overall #17   Document stores	Score 0.01 Rank #359   Overall #56   Key-value stores
Website	aws.amazon.com/­simpledb	hazelcast.com	www.ibm.com/­cloud/­cloudant	github.com/­STSSoft/­STSdb4
Technical documentation	docs.aws.amazon.com/­simpledb	hazelcast.org/­imdg/­docs	cloud.ibm.com/­docs/­Cloudant
Developer	Amazon	Hazelcast	IBM, Apache Software Foundation IBM acquired Cloudant in February 2014	STS Soft SC
Initial release	2007	2008	2010	2011
Current release		5.1, March 2022		4.0.8, September 2015
License Commercial or Open Source	commercial	Open Source Apache Version 2; commercial licenses available	commercial	Open Source GPLv2, commercial license available
Cloud-based only Only available as a cloud service	yes	no	yes	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language		Java	Erlang	C#
Server operating systems	hosted	All OS with a Java VM	hosted	Windows
Data scheme	schema-free	schema-free	schema-free	yes
Typing predefined data types such as float or date	no	yes	no	yes primitive types and user defined types (classes)
XML support Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.		yes the object must implement a serialization strategy	no
Secondary indexes	yes All columns are indexed automatically	yes	yes	no
SQL Support of SQL	no	SQL-like query language	no	no
APIs and other access methods	RESTful HTTP API	JCache JPA Memcached protocol RESTful HTTP API	RESTful HTTP/JSON API	.NET Client API
Supported programming languages	.Net C C++ Erlang Java PHP Python Ruby Scala	.Net C# C++ Clojure Go Java JavaScript (Node.js) Python Scala	C# Java JavaScript Objective-C PHP Ruby	C# Java
Server-side scripts Stored procedures	no	yes Event Listeners, Executor Services	View functions (Map-Reduce) in JavaScript	no
Triggers	no	yes Events	yes	no
Partitioning methods Methods for storing different data on different nodes	none Sharding must be implemented in the application	Sharding	Sharding	none
Replication methods Methods for redundantly storing data on multiple nodes	yes	yes Replicated Map	Multi-source replication Source-replica replication	none
MapReduce Offers an API for user-defined Map/Reduce methods	no	yes	yes	no
Consistency concepts Methods to ensure consistency in a distributed system	Eventual Consistency Immediate Consistency can be specified for read operations	Immediate Consistency or Eventual Consistency selectable by user Raft Consensus Algorithm	Eventual Consistency
Foreign keys Referential integrity	no	no	no	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	no Concurrent data updates can be detected by the application	one or two-phase-commit; repeatable reads; read commited	no atomic operations within a document possible	no
Concurrency Support for concurrent manipulation of data	yes	yes	yes Optimistic locking	yes
Durability Support for making data persistent	yes	yes	yes	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.		yes	no
User concepts Access control	Access rights for users and roles can be defined via the AWS Identity and Access Management (IAM)	Role-based access control	Access rights for users can be defined per database	no
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More resources
	Amazon SimpleDB	Hazelcast	IBM Cloudant	STSdb
DB-Engines blog posts	The popularity of cloud-based DBMSs has increased tenfold in four years 7 February 2017, Matthias Gelbmann Amazon - the rising star in the DBMS market 3 August 2015, Matthias Gelbmann show all