DBMS > Percona Server for MongoDB vs. SingleStore vs. XTDB

System Properties Comparison Percona Server for MongoDB vs. SingleStore vs. XTDB

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Editorial information provided by DB-Engines
Name	Percona Server for MongoDB  Xexclude from comparison	SingleStore former name was MemSQL  Xexclude from comparison	XTDB formerly named Crux  Xexclude from comparison
Description	A drop-in replacement for MongoDB Community Edition with enterprise-grade features.	MySQL wire-compliant distributed RDBMS that combines an in-memory row-oriented and a disc-based column-oriented storage with patented universal storage to handle transactional and analytical workloads in one single table type	A general purpose database with bitemporal SQL and Datalog and graph queries
Primary database model	Document store	Relational DBMS	Document store
Secondary database models		Document store Spatial DBMS Time Series DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.69 Rank #210   Overall #33   Document stores	Score 6.66 Rank #63   Overall #36   Relational DBMS	Score 0.00 Rank #363   Overall #49   Document stores
Website	www.percona.com/­software/­mongodb/­percona-server-for-mongodb	www.singlestore.com	github.com/­xtdb/­xtdb xtdb.com
Technical documentation	www.percona.com/­doc/­percona-server-for-mongodb/­LATEST/­index.html	docs.singlestore.com	xtdb.com/­docs
Developer	Percona	SingleStore Inc.	Juxt Ltd.
Initial release	2015	2013	2019
Current release	3.4.10-2.10, November 2017	7.6, November 2021	1.19, September 2021
License Commercial or Open Source	Open Source GPL Version 2	commercial free developer edition available	Open Source MIT License
Cloud-based only Only available as a cloud service	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++, Go	Clojure
Server operating systems	Linux	Linux 64 bit version required	All OS with a Java 8 (and higher) VM Linux
Data scheme	schema-free	yes	schema-free
Typing predefined data types such as float or date	yes	yes	yes, extensible-data-notation format
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
SQL Support of SQL	no	yes but no triggers and foreign keys	limited SQL, making use of Apache Calcite
APIs and other access methods	proprietary protocol using JSON	Cluster Management API as HTTP Rest and CLI HTTP API JDBC ODBC	HTTP REST JDBC
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	Bash C C# Java JavaScript (Node.js) Python	Clojure Java
Server-side scripts Stored procedures	JavaScript	yes	no
Triggers	no	no	no
Partitioning methods Methods for storing different data on different nodes	Sharding	Sharding hash partitioning	none
Replication methods Methods for redundantly storing data on multiple nodes	Source-replica replication	Source-replica replication stores two copies of each physical data partition on two separate nodes	yes, each node contains all data
MapReduce Offers an API for user-defined Map/Reduce methods	yes	no can define user-defined aggregate functions for map-reduce-style calculations	no
Consistency concepts Methods to ensure consistency in a distributed system	Eventual Consistency Immediate Consistency	Immediate Consistency
Foreign keys Referential integrity	no	no	no
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, multi-version concurrency control (MVCC)	yes
Durability Support for making data persistent	yes	yes All updates are persistent, including those to disk-based columnstores and memory-based row stores. Transaction commits are supported via write-ahead log.	yes, flexibel persistency by using storage technologies like Apache Kafka, RocksDB or LMDB
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
User concepts Access control	Access rights for users and roles	Fine grained access control via users, groups and roles
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More resources
	Percona Server for MongoDB	SingleStore former name was MemSQL	XTDB formerly named Crux
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