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DBMS > Dgraph vs. H2 vs. IRONdb vs. NuoDB vs. openGauss

System Properties Comparison Dgraph vs. H2 vs. IRONdb vs. NuoDB vs. openGauss

Editorial information provided by DB-Engines
NameDgraph  Xexclude from comparisonH2  Xexclude from comparisonIRONdb  Xexclude from comparisonNuoDB  Xexclude from comparisonopenGauss  Xexclude from comparison
IRONdb seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.
DescriptionDistributed and scalable native Graph DBMSFull-featured RDBMS with a small footprint, either embedded into a Java application or used as a database server.A distributed Time Series DBMS with a focus on scalability, fault tolerance and operational simplicityNuoDB is a webscale distributed database that supports SQL and ACID transactionsAn enterprise-class RDBMS compatible with high-performance, high-availability and high-performance originally developed by Huawei
Primary database modelGraph DBMSRelational DBMSTime Series DBMSRelational DBMSRelational DBMS
Secondary database modelsSpatial DBMSDocument store
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.53
Rank#152  Overall
#15  Graph DBMS
Score8.33
Rank#46  Overall
#30  Relational DBMS
Score0.94
Rank#197  Overall
#92  Relational DBMS
Score1.06
Rank#184  Overall
#84  Relational DBMS
Websitedgraph.iowww.h2database.comwww.circonus.com/solutions/time-series-database/www.3ds.com/­nuodb-distributed-sql-databasegitee.com/­opengauss
opengauss.org
Technical documentationdgraph.io/­docswww.h2database.com/­html/­main.htmldocs.circonus.com/irondb/category/getting-starteddoc.nuodb.comdocs.opengauss.org/­en
gitee.com/­opengauss/­docs
DeveloperDgraph Labs, Inc.Thomas MuellerCirconus LLC.Dassault Systèmes infooriginally NuoDB, Inc.Huawei and openGauss community
Initial release20162005201720132019
Current release2.2.220, July 2023V0.10.20, January 20183.0, March 2022
License infoCommercial or Open SourceOpen Source infoApache 2.0Open Source infodual-licence (Mozilla public license, Eclipse public license)commercialcommercial infolimited edition freeOpen Source
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageGoJavaC and C++C++C, C++, Java
Server operating systemsLinux
OS X
Windows
All OS with a Java VMLinuxhosted infoAmazon EC2, Windows Azure, SoftLayer
Linux
OS X
Windows
Linux
Data schemeschema-freeyesschema-freeyesyes
Typing infopredefined data types such as float or dateyesyesyes infotext, numeric, histogramsyesyes
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.nonononono
Secondary indexesyesyesnoyesyes
SQL infoSupport of SQLnoyesSQL-like query language (Circonus Analytics Query Language: CAQL)yesANSI SQL 2011
APIs and other access methodsGraphQL query language
gRPC (using protocol buffers) API
HTTP API
JDBC
ODBC
HTTP APIADO.NET
JDBC
ODBC
JDBC
ODBC
Supported programming languagesC#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby
Java.Net
C
C++
Clojure
Erlang
Go
Haskell
Java
JavaScript
JavaScript (Node.js)
Lisp
Lua
Perl
PHP
Python
R
Ruby
Rust
Scala
.Net
C
C++
Go
Java
JavaScript
JavaScript (Node.js)
PHP
Python
Ruby
C
C++
Java
Server-side scripts infoStored proceduresnoJava Stored Procedures and User-Defined Functionsyes, in LuaJava, SQLyes
Triggersnoyesnoyesyes
Partitioning methods infoMethods for storing different data on different nodesyesnoneAutomatic, metric affinity per nodedata is dynamically stored/cached on the nodes where it is read/writtenhorizontal partitioning (by range, list and hash)
Replication methods infoMethods for redundantly storing data on multiple nodesSynchronous replication via RaftWith clustering: 2 database servers on different computers operate on identical copies of a databaseconfigurable replication factor, datacenter awareyes infoManaged transparently by NuoDBSource-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate consistency per node, eventual consistency across nodesImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyesnoyesyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDnoACID infotunable commit protocolACID
Concurrency infoSupport for concurrent manipulation of datayesyes, multi-version concurrency control (MVCC)yesyes infoMVCCyes
Durability infoSupport for making data persistentyesyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnoyes infoTemporary tableno
User concepts infoAccess controlno infoPlanned for future releasesfine grained access rights according to SQL-standardnoStandard SQL roles/ privileges, Administrative UsersAccess rights for users, groups and roles according to SQL-standard

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More resources
DgraphH2IRONdbNuoDBopenGauss
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