DBMS > Percona Server for MongoDB vs. Valentina Server vs. VelocityDB vs. Yaacomo

System Properties Comparison Percona Server for MongoDB vs. Valentina Server vs. VelocityDB vs. Yaacomo

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Editorial information provided by DB-Engines
Name	Percona Server for MongoDB  Xexclude from comparison	Valentina Server  Xexclude from comparison	VelocityDB  Xexclude from comparison	Yaacomo  Xexclude from comparison
				Yaacomo seems to be discontinued and is removed from the DB-Engines ranking
Description	A drop-in replacement for MongoDB Community Edition with enterprise-grade features.	Object-relational database and reports server	A .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)	OpenCL based in-memory RDBMS, designed for efficiently utilizing the hardware via parallel computing
Primary database model	Document store	Relational DBMS	Graph DBMS Object oriented DBMS	Relational DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.60 Rank #246   Overall #39   Document stores	Score 0.21 Rank #325   Overall #144   Relational DBMS	Score 0.11 Rank #354   Overall #37   Graph DBMS #15   Object oriented DBMS
Website	www.percona.com/­mongodb/­software/­percona-server-for-mongodb	www.valentina-db.net	velocitydb.com	yaacomo.com
Technical documentation	docs.percona.com/­percona-distribution-for-mongodb	valentina-db.com/­docs/­dokuwiki/­v5/­doku.php	velocitydb.com/­UserGuide
Developer	Percona	Paradigma Software	VelocityDB Inc	Q2WEB GmbH
Initial release	2015	1999	2011	2009
Current release	3.4.10-2.10, November 2017	5.7.5	7.x
License Commercial or Open Source	Open Source GPL Version 2	commercial	commercial	commercial
Cloud-based only Only available as a cloud service	no	no	no	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language	C++		C#
Server operating systems	Linux	Linux OS X Windows	Any that supports .NET	Android Linux Windows
Data scheme	schema-free	yes	yes	yes
Typing predefined data types such as float or date	yes	yes	yes	yes
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		no	no
Secondary indexes	yes	yes	yes	yes
SQL Support of SQL	no	yes	no	yes
APIs and other access methods	proprietary protocol using JSON	ODBC	.Net	JDBC ODBC
Supported programming languages	Actionscript C C# C++ Clojure ColdFusion D Dart Delphi Erlang Go Groovy Haskell Java JavaScript Lisp Lua MatLab Perl PHP PowerShell Prolog Python R Ruby Scala Smalltalk	.Net C C# C++ Objective-C PHP Ruby Visual Basic Visual Basic.NET	.Net
Server-side scripts Stored procedures	JavaScript	yes	no
Triggers	no	yes	Callbacks are triggered when data changes	yes
Partitioning methods Methods for storing different data on different nodes	Sharding		Sharding	horizontal partitioning
Replication methods Methods for redundantly storing data on multiple nodes	Source-replica replication			Source-replica replication
MapReduce Offers an API for user-defined Map/Reduce methods	yes	no	no	no
Consistency concepts Methods to ensure consistency in a distributed system	Eventual Consistency Immediate Consistency		Immediate Consistency	Immediate Consistency
Foreign keys Referential integrity	no	yes	no	yes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	no		ACID	ACID
Concurrency Support for concurrent manipulation of data	yes		yes	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 via In-Memory Engine	yes	yes	yes
User concepts Access control	Access rights for users and roles	fine grained access rights according to SQL-standard	Based on Windows Authentication	fine grained access rights according to SQL-standard
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More resources
	Percona Server for MongoDB	Valentina Server	VelocityDB	Yaacomo
Recent citations in the news	MongoDB Performance Tuning 23 May 2024, Database Trends and Applications How to Plan Your MongoDB Upgrade 29 January 2024, The New Stack There are lots of ways to put a database in the cloud – here's what to consider 15 September 2023, The Register Why Isn't the World Upgrading Its Databases? 25 March 2024, The New Stack FerretDB goes GA: Gives you MongoDB, without the MongoDB... 15 May 2023, The Stack provided by Google News	A Look at Valentina — SitePoint 18 April 2014, SitePoint MySQL GUI Tools for Windows and Ubuntu/Linux: Top 8 free or open source 7 December 2018, H2S Media provided by Google News

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