DBMS > Amazon SimpleDB vs. LokiJS vs. SAP SQL Anywhere vs. Sequoiadb

System Properties Comparison Amazon SimpleDB vs. LokiJS vs. SAP SQL Anywhere vs. Sequoiadb

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Editorial information provided by DB-Engines
Name	Amazon SimpleDB  Xexclude from comparison	LokiJS  Xexclude from comparison	SAP SQL Anywhere formerly called Adaptive Server Anywhere  Xexclude from comparison	Sequoiadb  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	In-memory JavaScript DBMS	RDBMS database and synchronization technologies for server, desktop, remote office, and mobile environments	NewSQL database with distributed OLTP and SQL
Primary database model	Key-value store	Document store	Relational DBMS	Document store Relational DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 2.10 Rank #122   Overall #24   Key-value stores	Score 0.57 Rank #226   Overall #34   Document stores	Score 5.57 Rank #74   Overall #40   Relational DBMS	Score 0.39 Rank #260   Overall #39   Document stores #121   Relational DBMS
Website	aws.amazon.com/­simpledb	github.com/­techfort/­LokiJS	www.sap.com/­products/­sql-anywhere.html	www.sequoiadb.com
Technical documentation	docs.aws.amazon.com/­simpledb	techfort.github.io/­LokiJS	help.sap.com/­sql-anywhere	www.sequoiadb.com/­en/­index.php?m=Files&a=index
Developer	Amazon		SAP formerly Sybase	Sequoiadb Ltd.
Initial release	2007	2014	1992	2013
Current release			17, July 2015
License Commercial or Open Source	commercial	Open Source	commercial	Open Source Server: AGPL; Client: Apache V2
Cloud-based only Only available as a cloud service	yes	no	no	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language		JavaScript		C++
Server operating systems	hosted	server-less, requires a JavaScript environment (browser, Node.js)	AIX HP-UX Linux OS X Solaris Windows	Linux
Data scheme	schema-free	schema-free	yes	schema-free
Typing predefined data types such as float or date	no	no	yes	yes oid, date, timestamp, binary, regex
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.		no	yes	no
Secondary indexes	yes All columns are indexed automatically	yes via views	yes	yes
SQL Support of SQL	no	no	yes	SQL-like query language
APIs and other access methods	RESTful HTTP API	JavaScript API	ADO.NET HTTP API JDBC ODBC	proprietary protocol using JSON
Supported programming languages	.Net C C++ Erlang Java PHP Python Ruby Scala	JavaScript	C C# C++ Delphi Java JavaScript (Node.js) Perl PHP Python Ruby	.Net C++ Java PHP Python
Server-side scripts Stored procedures	no	View functions in JavaScript	yes, in C/C++, Java, .Net or Perl	JavaScript
Triggers	no	yes	yes	no
Partitioning methods Methods for storing different data on different nodes	none Sharding must be implemented in the application	none	none	Sharding
Replication methods Methods for redundantly storing data on multiple nodes	yes	none	Source-replica replication Database mirroring	Source-replica replication
MapReduce Offers an API for user-defined Map/Reduce methods	no	yes	no	no
Consistency concepts Methods to ensure consistency in a distributed system	Eventual Consistency Immediate Consistency can be specified for read operations	none	Immediate Consistency	Eventual Consistency
Foreign keys Referential integrity	no	no	yes	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	no Concurrent data updates can be detected by the application	no atomic operations within a single collection possible	ACID	Document is locked during a transaction
Concurrency Support for concurrent manipulation of data	yes		yes	yes
Durability Support for making data persistent	yes	yes Serialization of a DB in a Node.JS/Cordova/PhoneGap environment. Usage of the IndexedDB-API in a browser.	yes	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.		yes	yes	no
User concepts Access control	Access rights for users and roles can be defined via the AWS Identity and Access Management (IAM)	no	fine grained access rights according to SQL-standard	simple password-based access control
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More resources
	Amazon SimpleDB	LokiJS	SAP SQL Anywhere formerly called Adaptive Server Anywhere	Sequoiadb
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	New kids on the block: database management systems implemented in JavaScript 1 December 2014, Matthias Gelbmann show all