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DBMS > Dgraph vs. OpenQM vs. Oracle Rdb

System Properties Comparison Dgraph vs. OpenQM vs. Oracle Rdb

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Editorial information provided by DB-Engines
NameDgraph  Xexclude from comparisonOpenQM infoalso called QM  Xexclude from comparisonOracle Rdb  Xexclude from comparison
DescriptionDistributed and scalable native Graph DBMSQpenQM is a high-performance, self-tuning, multi-value DBMS
Primary database modelGraph DBMSMultivalue DBMSRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.48
Rank#158  Overall
#15  Graph DBMS
Score0.33
Rank#286  Overall
#10  Multivalue DBMS
Score1.08
Rank#187  Overall
#85  Relational DBMS
Websitedgraph.iowww.rocketsoftware.com/­products/­rocket-multivalue-application-development-platform/­rocket-open-qmwww.oracle.com/­database/­technologies/­related/­rdb.html
Technical documentationdgraph.io/­docswww.oracle.com/­database/­technologies/­related/­rdb-doc.html
DeveloperDgraph Labs, Inc.Rocket Software, originally Martin PhillipsOracle, originally developed by Digital Equipment Corporation (DEC)
Initial release201619931984
Current release3.4-127.4.1.1, 2021
License infoCommercial or Open SourceOpen Source infoApache 2.0Open Source infoGPLv2, extended commercial license availablecommercial
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageGo
Server operating systemsLinux
OS X
Windows
AIX
FreeBSD
Linux
macOS
Raspberry Pi
Solaris
Windows
HP Open VMS
Data schemeschema-freeyes infowith some exceptionsFlexible Schema (defined schema, partial schema, schema free)
Typing infopredefined data types such as float or dateyesyes
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.noyesno
Secondary indexesyesyesyes
SQL infoSupport of SQLnonoyes
APIs and other access methodsGraphQL query language
gRPC (using protocol buffers) API
HTTP API
Supported programming languagesC#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby
.Net
Basic
C
Java
Objective C
PHP
Python
Server-side scripts infoStored proceduresnoyes
Triggersnoyes
Partitioning methods infoMethods for storing different data on different nodesyesyes
Replication methods infoMethods for redundantly storing data on multiple nodesSynchronous replication via Raftyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDyes, on a single node
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.no
User concepts infoAccess controlno infoPlanned for future releasesAccess rights can be defined down to the item level

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More resources
DgraphOpenQM infoalso called QMOracle Rdb
Recent citations in the news

Dgraph on AWS: Setting up a horizontally scalable graph database | Amazon Web Services
1 September 2020, AWS Blog

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10 September 2020, TechCrunch

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