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DBMS > Blueflood vs. OpenMLDB vs. SAP HANA vs. Stardog

System Properties Comparison Blueflood vs. OpenMLDB vs. SAP HANA vs. Stardog

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Editorial information provided by DB-Engines
NameBlueflood  Xexclude from comparisonOpenMLDB  Xexclude from comparisonSAP HANA  Xexclude from comparisonStardog  Xexclude from comparison
DescriptionScalable TimeSeries DBMS based on CassandraAn open-source machine learning database that provides a feature platform for training and inferenceIn-memory, column based data store. Available as appliance or cloud serviceEnterprise Knowledge Graph platform and graph DBMS with high availability, high performance reasoning, and virtualization
Primary database modelTime Series DBMSTime Series DBMSRelational DBMSGraph DBMS
RDF store
Secondary database modelsRelational DBMSDocument store
Graph DBMS infowith SAP Hana, Enterprise Edition
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.13
Rank#346  Overall
#33  Time Series DBMS
Score0.10
Rank#359  Overall
#36  Time Series DBMS
Score44.27
Rank#23  Overall
#16  Relational DBMS
Score2.07
Rank#122  Overall
#11  Graph DBMS
#6  RDF stores
Websiteblueflood.ioopenmldb.aiwww.sap.com/­products/­hana.htmlwww.stardog.com
Technical documentationgithub.com/­rax-maas/­blueflood/­wikiopenmldb.ai/­docs/­zh/­mainhelp.sap.com/­hanadocs.stardog.com
DeveloperRackspace4 Paradigm Inc.SAPStardog-Union
Initial release2013202020102010
Current release2024-2 February 20242.0 SPS07 (April 4, 2023), April 20237.3.0, May 2020
License infoCommercial or Open SourceOpen Source infoApache 2.0Open Sourcecommercialcommercial info60-day fully-featured trial license; 1-year fully-featured non-commercial use license for academics/students
Cloud-based only infoOnly available as a cloud servicenonono infoalso available as a cloud based serviceno
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaC++, Java, ScalaJava
Server operating systemsLinux
OS X
LinuxAppliance or cloud-serviceLinux
macOS
Windows
Data schemepredefined schemeFixed schemayesschema-free and OWL/RDFS-schema support
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.nononono infoImport/export of XML data possible
Secondary indexesnoyesyesyes infosupports real-time indexing in full-text and geospatial
SQL infoSupport of SQLnoyesyesYes, compatible with all major SQL variants through dedicated BI/SQL Server
APIs and other access methodsHTTP RESTJDBC
SQLAlchemy
JDBC
ODBC
GraphQL query language
HTTP API
Jena RDF API
OWL
RDF4J API
Sesame REST HTTP Protocol
SNARL
SPARQL
Spring Data
Stardog Studio
TinkerPop 3
Supported programming languagesC++
Go
Java
Python
Scala
.Net
Clojure
Groovy
Java
JavaScript
Python
Ruby
Server-side scripts infoStored proceduresnonoSQLScript, Ruser defined functions and aggregates, HTTP Server extensions in Java
Triggersnonoyesyes infovia event handlers
Partitioning methods infoMethods for storing different data on different nodesSharding infobased on Cassandrahorizontal partitioningyesnone
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor infobased on CassandraSource-replica replicationyesMulti-source replication in HA-Cluster
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency infobased on Cassandra
Immediate Consistency infobased on Cassandra
Immediate ConsistencyImmediate ConsistencyImmediate Consistency in HA-Cluster
Foreign keys infoReferential integritynonoyesyes inforelationships in graphs
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonoACIDACID
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.noyesyesyes
User concepts infoAccess controlnofine grained access rights according to SQL-standardyesAccess rights for users and roles

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More resources
BluefloodOpenMLDBSAP HANAStardog
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