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DBMS > OpenMLDB vs. searchxml vs. SpaceTime vs. Trafodion

System Properties Comparison OpenMLDB vs. searchxml vs. SpaceTime vs. Trafodion

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Editorial information provided by DB-Engines
NameOpenMLDB  Xexclude from comparisonsearchxml  Xexclude from comparisonSpaceTime  Xexclude from comparisonTrafodion  Xexclude from comparison
Apache Trafodion has been retired in 2021. Therefore it is excluded from the DB-Engines Ranking.
DescriptionAn open-source machine learning database that provides a feature platform for training and inferenceDBMS for structured and unstructured content wrapped with an application serverSpaceTime is a spatio-temporal DBMS with a focus on performance.Transactional SQL-on-Hadoop DBMS
Primary database modelTime Series DBMSNative XML DBMS
Search engine
Spatial DBMSRelational DBMS
Secondary database modelsRelational DBMSRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.10
Rank#359  Overall
#36  Time Series DBMS
Score0.03
Rank#390  Overall
#7  Native XML DBMS
#24  Search engines
Score0.03
Rank#392  Overall
#8  Spatial DBMS
Websiteopenmldb.aiwww.searchxml.net/­category/­productswww.mireo.com/­spacetimetrafodion.apache.org
Technical documentationopenmldb.ai/­docs/­zh/­mainwww.searchxml.net/­support/­handoutstrafodion.apache.org/­documentation.html
Developer4 Paradigm Inc.informationpartners gmbhMireoApache Software Foundation, originally developed by HP
Initial release2020201520202014
Current release2024-2 February 20241.02.3.0, February 2019
License infoCommercial or Open SourceOpen SourcecommercialcommercialOpen Source infoApache 2.0
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC++, Java, ScalaC++C++C++, Java
Server operating systemsLinuxWindowsLinuxLinux
Data schemeFixed schemaschema-freeyesyes
Typing infopredefined data types such as float or dateyesyesyesyes
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.noyesnono
Secondary indexesyesyesnoyes
SQL infoSupport of SQLyesnoA subset of ANSI SQL is implementedyes
APIs and other access methodsJDBC
SQLAlchemy
RESTful HTTP API
WebDAV
XQuery
XSLT
RESTful HTTP APIADO.NET
JDBC
ODBC
Supported programming languagesC++
Go
Java
Python
Scala
C++ infomost other programming languages supported via APIsC#
C++
Python
All languages supporting JDBC/ODBC/ADO.Net
Server-side scripts infoStored proceduresnoyes infoon the application servernoJava Stored Procedures
Triggersnononono
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioningnoneFixed-grid hypercubesSharding
Replication methods infoMethods for redundantly storing data on multiple nodesSource-replica replicationyes infosychronisation to multiple collectionsReal-time block device replication (DRBD)yes, via HBase
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonoyes infovia user defined functions and HBase
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynononoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanomultiple readers, single writernoACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnonono
User concepts infoAccess controlfine grained access rights according to SQL-standardDomain, group and role-based access control at the document level and for application servicesyesfine grained access rights according to SQL-standard

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More resources
OpenMLDBsearchxmlSpaceTimeTrafodion
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