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DBMS > Blueflood vs. FatDB vs. H2GIS vs. TerminusDB

System Properties Comparison Blueflood vs. FatDB vs. H2GIS vs. TerminusDB

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Editorial information provided by DB-Engines
NameBlueflood  Xexclude from comparisonFatDB  Xexclude from comparisonH2GIS  Xexclude from comparisonTerminusDB infoformer name was DataChemist  Xexclude from comparison
FatDB/FatCloud has ceased operations as a company with February 2014. FatDB is discontinued and excluded from the ranking.
DescriptionScalable TimeSeries DBMS based on CassandraA .NET NoSQL DBMS that can integrate with and extend SQL Server.Spatial extension of H2Scalable Graph Database platform making enterprise data available by exploiting inferred entities and relationships
Primary database modelTime Series DBMSDocument store
Key-value store
Spatial DBMSGraph DBMS
Secondary database modelsRelational DBMSDocument store
RDF store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.13
Rank#346  Overall
#33  Time Series DBMS
Score0.08
Rank#368  Overall
#7  Spatial DBMS
Score0.23
Rank#316  Overall
#27  Graph DBMS
Websiteblueflood.iowww.h2gis.orgterminusdb.com
Technical documentationgithub.com/­rax-maas/­blueflood/­wikiwww.h2gis.org/­docs/­hometerminusdb.github.io/­terminusdb/­#
DeveloperRackspaceFatCloudCNRSDataChemist Ltd.
Initial release2013201220132018
Current release11.0.0, January 2023
License infoCommercial or Open SourceOpen Source infoApache 2.0commercialOpen Source infoLGPL 3.0Open Source infoGPL V3
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaC#JavaProlog, Rust
Server operating systemsLinux
OS X
WindowsLinux
Data schemepredefined schemeschema-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.nonono
Secondary indexesnoyesyes
SQL infoSupport of SQLnono infoVia inetgration in SQL ServeryesSQL-like query language (WOQL)
APIs and other access methodsHTTP REST.NET Client API
LINQ
RESTful HTTP API
RPC
Windows WCF Bindings
OWL
RESTful HTTP API
WOQL (Web Object Query Language)
Supported programming languagesC#JavaJavaScript
Python
Server-side scripts infoStored proceduresnoyes infovia applicationsyes infobased on H2yes
Triggersnoyes infovia applicationsyesyes
Partitioning methods infoMethods for storing different data on different nodesSharding infobased on CassandraShardingnoneGraph Partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor infobased on Cassandraselectable replication factoryes infobased on H2Journaling Streams
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesnono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency infobased on Cassandra
Immediate Consistency infobased on Cassandra
Eventual Consistency
Immediate Consistency
Immediate Consistency
Foreign keys infoReferential integritynonoyesyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonoACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes, multi-version concurrency control (MVCC)yes
Durability infoSupport for making data persistentyesyesyesyes infoin-memory journaling
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes
User concepts infoAccess controlnono infoCan implement custom security layer via applicationsyes infobased on H2Role-based access control

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More resources
BluefloodFatDBH2GISTerminusDB infoformer name was DataChemist
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