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DBMS > CockroachDB vs. Memgraph vs. NuoDB vs. OpenQM

System Properties Comparison CockroachDB vs. Memgraph vs. NuoDB vs. OpenQM

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Editorial information provided by DB-Engines
NameCockroachDB  Xexclude from comparisonMemgraph  Xexclude from comparisonNuoDB  Xexclude from comparisonOpenQM infoalso called QM  Xexclude from comparison
DescriptionCockroachDB is a distributed database architected for modern cloud applications. It is wire compatible with PostgreSQL and backed by a Key-Value Store, which is either RocksDB or a purpose-built derivative, called Pebble.An open source graph database built for real-time streaming and compatible with Neo4jNuoDB is a webscale distributed database that supports SQL and ACID transactionsQpenQM is a high-performance, self-tuning, multi-value DBMS
Primary database modelRelational DBMSGraph DBMSRelational DBMSMultivalue DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score6.15
Rank#55  Overall
#33  Relational DBMS
Score3.02
Rank#98  Overall
#8  Graph DBMS
Score0.89
Rank#198  Overall
#92  Relational DBMS
Score0.27
Rank#298  Overall
#10  Multivalue DBMS
Websitewww.cockroachlabs.commemgraph.comwww.3ds.com/­nuodb-distributed-sql-databasewww.rocketsoftware.com/­products/­rocket-multivalue-application-development-platform/­rocket-open-qm
Technical documentationwww.cockroachlabs.com/­docsmemgraph.com/­docsdoc.nuodb.com
Social network pagesLinkedInTwitterFacebookGitHubDiscord
DeveloperCockroach LabsMemgraph LtdDassault Systèmes infooriginally NuoDB, Inc.Rocket Software, originally Martin Phillips
Initial release2015201720131993
Current release23.1.1, May 20233.4-12
License infoCommercial or Open SourceOpen Source infoApache 2.0, commercial license availableOpen Source infoBSL 1.1; commercial license for enterprise edition availablecommercial infolimited edition freeOpen Source infoGPLv2, extended commercial license available
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageGoC and C++C++
Server operating systemsLinux
macOS
Windows
Linuxhosted infoAmazon EC2, Windows Azure, SoftLayer
Linux
OS X
Windows
AIX
FreeBSD
Linux
macOS
Raspberry Pi
Solaris
Windows
Data schemedynamic schemaschema-free and schema-optionalyesyes infowith some exceptions
Typing infopredefined data types such as float or dateyesyesyes
XML support infoSome form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.nononoyes
Secondary indexesyesyesyes
SQL infoSupport of SQLyes, wire compatible with PostgreSQLnoyesno
APIs and other access methodsJDBCBolt protocol
Cypher query language
ADO.NET
JDBC
ODBC
Supported programming languagesC#
C++
Clojure
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby
Rust
.Net
C
C++
Elixir
Go
Haskell
Java
JavaScript
PHP
Python
Ruby
Scala
.Net
C
C++
Go
Java
JavaScript
JavaScript (Node.js)
PHP
Python
Ruby
.Net
Basic
C
Java
Objective C
PHP
Python
Server-side scripts infoStored proceduresnoJava, SQLyes
Triggersnoyesyes
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioning (by key range) infoall tables are translated to an ordered KV store and then broken down into 64MB ranges, which are then used as replicas in RAFTSharding infodynamic graph partitioningdata is dynamically stored/cached on the nodes where it is read/writtenyes
Replication methods infoMethods for redundantly storing data on multiple nodesMulti-source replication using RAFTMulti-source replication using RAFTyes infoManaged transparently by NuoDByes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesyes inforelationships in graphsyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACID infowith snapshot isolationACID infotunable commit protocolACID
Concurrency infoSupport for concurrent manipulation of datayesyes, multi-version concurrency control (MVCC)yes infoMVCCyes
Durability infoSupport for making data persistentyesyes infowith periodic snapshot and write-ahead logging (WAL) of changesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesyes infoTemporary table
User concepts infoAccess controlRole-based access controlUsers, roles and permissionsStandard SQL roles/ privileges, Administrative UsersAccess rights can be defined down to the item level
More information provided by the system vendor
CockroachDBMemgraphNuoDBOpenQM infoalso called QM
Specific characteristicsMemgraph directly connects to your streaming infrastructure so you and your team...
» more
Competitive advantagesBusiness Source License ensures a future for the Memgraph community MAGE algorithm...
» more
Typical application scenariosGraph algorithms in bioinformatics Social network analysis Cryptocurrency network...
» more
Licensing and pricing modelsYou can check out our pricing model and licenses on the company website .
» more

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More resources
CockroachDBMemgraphNuoDBOpenQM infoalso called QM
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