DBMS > FatDB vs. Percona Server for MongoDB vs. SAP Advantage Database Server vs. Stardog

System Properties Comparison FatDB vs. Percona Server for MongoDB vs. SAP Advantage Database Server vs. Stardog

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Editorial information provided by DB-Engines
Name	FatDB  Xexclude from comparison	Percona Server for MongoDB  Xexclude from comparison	SAP Advantage Database Server former name: Sybase ADS  Xexclude from comparison	Stardog  Xexclude from comparison
	FatDB/FatCloud has ceased operations as a company with February 2014. FatDB is discontinued and excluded from the ranking.		SAP Advantage Database Server seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.
Description	A .NET NoSQL DBMS that can integrate with and extend SQL Server.	A drop-in replacement for MongoDB Community Edition with enterprise-grade features.	Low-cost RDBMS with access to ISAM and FoxPro data structures	Enterprise Knowledge Graph platform and graph DBMS with high availability, high performance reasoning, and virtualization
Primary database model	Document store Key-value store	Document store	Relational DBMS	Graph DBMS RDF store
DB-Engines Ranking measures the popularity of database management systems Trend Chart		Score 0.60 Rank #246   Overall #39   Document stores		Score 2.07 Rank #122   Overall #11   Graph DBMS #6   RDF stores
Website		www.percona.com/­mongodb/­software/­percona-server-for-mongodb	www.sap.com/products/advantage-database-server.html	www.stardog.com
Technical documentation		docs.percona.com/­percona-distribution-for-mongodb		docs.stardog.com
Developer	FatCloud	Percona	Sybase, SAP	Stardog-Union
Initial release	2012	2015	1993	2010
Current release		3.4.10-2.10, November 2017		7.3.0, May 2020
License Commercial or Open Source	commercial	Open Source GPL Version 2	commercial	commercial 60-day fully-featured trial license; 1-year fully-featured non-commercial use license for academics/students
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++		Java
Server operating systems	Windows	Linux	Linux Windows	Linux macOS Windows
Data scheme	schema-free	schema-free	yes	schema-free and OWL/RDFS-schema support
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 Import/export of XML data possible
Secondary indexes	yes	yes	yes	yes supports real-time indexing in full-text and geospatial
SQL Support of SQL	no Via inetgration in SQL Server	no	yes	Yes, compatible with all major SQL variants through dedicated BI/SQL Server
APIs and other access methods	.NET Client API LINQ RESTful HTTP API RPC Windows WCF Bindings	proprietary protocol using JSON	.NET Client API ADO.NET JDBC ODBC OLE DB	GraphQL query language HTTP API Jena RDF API OWL RDF4J API Sesame REST HTTP Protocol SNARL SPARQL Spring Data Stardog Studio TinkerPop 3
Supported programming languages	C#	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	Delphi Perl PHP	.Net Clojure Groovy Java JavaScript Python Ruby
Server-side scripts Stored procedures	yes via applications	JavaScript	yes	user defined functions and aggregates, HTTP Server extensions in Java
Triggers	yes via applications	no	yes	yes via event handlers
Partitioning methods Methods for storing different data on different nodes	Sharding	Sharding	none	none
Replication methods Methods for redundantly storing data on multiple nodes	selectable replication factor	Source-replica replication	Multi-source replication CONFLICT Trigger to resolve replication conflicts Source-replica replication	Multi-source replication in HA-Cluster
MapReduce Offers an API for user-defined Map/Reduce methods	yes	yes	no	no
Consistency concepts Methods to ensure consistency in a distributed system	Eventual Consistency Immediate Consistency	Eventual Consistency Immediate Consistency	Immediate Consistency	Immediate Consistency in HA-Cluster
Foreign keys Referential integrity	no	no	yes	yes relationships in graphs
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	no	no	ACID	ACID
Concurrency Support for concurrent manipulation of data	yes	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	no caching of (temporary) tables can be configured	yes
User concepts Access control	no Can implement custom security layer via applications	Access rights for users and roles	fine grained access rights according to SQL-standard	Access rights for users and roles
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More resources
	FatDB	Percona Server for MongoDB	SAP Advantage Database Server former name: Sybase ADS	Stardog
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