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DBMS > OpenMLDB vs. Quasardb vs. STSdb

System Properties Comparison OpenMLDB vs. Quasardb vs. STSdb

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Editorial information provided by DB-Engines
NameOpenMLDB  Xexclude from comparisonQuasardb  Xexclude from comparisonSTSdb  Xexclude from comparison
DescriptionAn open-source machine learning database that provides a feature platform for training and inferenceDistributed, high-performance timeseries databaseKey-Value Store with special method for indexing infooptimized for high performance using a special indexing method
Primary database modelTime Series DBMSTime Series DBMSKey-value store
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.04
Rank#376  Overall
#39  Time Series DBMS
Score0.19
Rank#327  Overall
#30  Time Series DBMS
Score0.06
Rank#365  Overall
#55  Key-value stores
Websiteopenmldb.aiquasar.aigithub.com/­STSSoft/­STSdb4
Technical documentationopenmldb.ai/­docs/­zh/­maindoc.quasar.ai/­master
Developer4 Paradigm Inc.quasardbSTS Soft SC
Initial release202020092011
Current release2024-2 February 20243.14.1, January 20244.0.8, September 2015
License infoCommercial or Open SourceOpen Sourcecommercial infoFree community edition, Non-profit organizations and non-commercial usage are eligible for free licensesOpen Source infoGPLv2, 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 languageC++, Java, ScalaC++C#
Server operating systemsLinuxBSD
Linux
OS X
Windows
Windows
Data schemeFixed schemaschema-freeyes
Typing infopredefined data types such as float or dateyesyes infointeger and binaryyes infoprimitive types and user defined types (classes)
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.nono
Secondary indexesyesyes infowith tagsno
SQL infoSupport of SQLyesSQL-like query languageno
APIs and other access methodsJDBC
SQLAlchemy
HTTP API.NET Client API
Supported programming languagesC++
Go
Java
Python
Scala
.Net
C
C#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
R
C#
Java
Server-side scripts infoStored proceduresnonono
Triggersnonono
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioningSharding infoconsistent hashingnone
Replication methods infoMethods for redundantly storing data on multiple nodesSource-replica replicationSource-replica replication with selectable replication factornone
MapReduce infoOffers an API for user-defined Map/Reduce methodswith Hadoop integrationno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDno
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyes infoby using LevelDByes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes infoTransient mode
User concepts infoAccess controlfine grained access rights according to SQL-standardCryptographically strong user authentication and audit trailno

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More resources
OpenMLDBQuasardbSTSdb
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