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DBMS > OpenQM vs. TerminusDB vs. Yandex Database (YDB)

System Properties Comparison OpenQM vs. TerminusDB vs. Yandex Database (YDB)

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Editorial information provided by DB-Engines
NameOpenQM infoalso called QM  Xexclude from comparisonTerminusDB infoformer name was DataChemist  Xexclude from comparisonYandex Database (YDB)  Xexclude from comparison
DescriptionQpenQM is a high-performance, self-tuning, multi-value DBMSScalable Graph Database platform making enterprise data available by exploiting inferred entities and relationshipsA distributed fault-tolerant database service, with high availability, scalability, immediate consistency and ACID transactions and providing an Amazon DynamoDB compatible API
Primary database modelMultivalue DBMSGraph DBMSDocument store
Relational DBMS
Secondary database modelsDocument store
RDF store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.20
Rank#286  Overall
#10  Multivalue DBMS
Score0.10
Rank#314  Overall
#29  Graph DBMS
Score0.50
Rank#241  Overall
#37  Document stores
#116  Relational DBMS
Websitewww.openqm.comterminusdb.comcloud.yandex.com/­en/­services/­ydb
github.com/­ydb-platform/­ydb
ydb.tech
Technical documentationwww.openqm.com/­support/­documentationterminusdb.github.io/­terminusdb/­#cloud.yandex.com/­en/­docs/­ydb
ydb.tech/­en/­docs
DeveloperMartin PhillipsDataChemist Ltd.Yandex
Initial release199320182019
Current release3.4-1210.0.21, March 2022
License infoCommercial or Open SourceOpen Source infoGPLv2, extended commercial license availableOpen Source infoGPL V3Open Source infoApache 2.0; commercial license available
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageProlog, Rust
Server operating systemsAIX
FreeBSD
Linux
macOS
Raspberry Pi
Solaris
Windows
LinuxLinux
Data schemeyes infowith some exceptionsyesFlexible 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.yesnono
Secondary indexesyesyes
SQL infoSupport of SQLnoSQL-like query language (WOQL)SQL-like query language (YQL)
APIs and other access methodsOWL
RESTful HTTP API
WOQL (Web Object Query Language)
RESTful HTTP API (DynamoDB compatible)
Supported programming languages.Net
Basic
C
Java
Objective C
PHP
Python
JavaScript
Python
Go
Java
JavaScript (Node.js)
PHP
Python
Server-side scripts infoStored proceduresyesyesno
Triggersyesyes
Partitioning methods infoMethods for storing different data on different nodesyesGraph PartitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyesJournaling StreamsActive-passive shard replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyes infoin-memory journalingyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.no
User concepts infoAccess controlAccess rights can be defined down to the item levelRole-based access controlAccess rights defined for Yandex Cloud users

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More resources
OpenQM infoalso called QMTerminusDB infoformer name was DataChemistYandex Database (YDB)
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