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DBMS > Apache Jena - TDB vs. Memcached vs. SpaceTime

System Properties Comparison Apache Jena - TDB vs. Memcached vs. SpaceTime

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Editorial information provided by DB-Engines
NameApache Jena - TDB  Xexclude from comparisonMemcached  Xexclude from comparisonSpaceTime  Xexclude from comparison
DescriptionA RDF storage and query DBMS, shipped as an optional-use component of the Apache Jena frameworkIn-memory key-value store, originally intended for cachingSpaceTime is a spatio-temporal DBMS with a focus on performance.
Primary database modelRDF storeKey-value storeSpatial DBMS
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score3.75
Rank#84  Overall
#3  RDF stores
Score19.42
Rank#32  Overall
#4  Key-value stores
Score0.00
Rank#383  Overall
#7  Spatial DBMS
Websitejena.apache.org/­documentation/­tdb/­index.htmlwww.memcached.orgwww.mireo.com/­spacetime
Technical documentationjena.apache.org/­documentation/­tdb/­index.htmlgithub.com/­memcached/­memcached/­wiki
DeveloperApache Software Foundation infooriginally developed by HP LabsDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournalMireo
Initial release200020032020
Current release4.9.0, July 20231.6.25, March 2024
License infoCommercial or Open SourceOpen Source infoApache License, Version 2.0Open Source infoBSD licensecommercial
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaCC++
Server operating systemsAll OS with a Java VMFreeBSD
Linux
OS X
Unix
Windows
Linux
Data schemeyes infoRDF Schemasschema-freeyes
Typing infopredefined data types such as float or dateyesnoyes
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.no
Secondary indexesyesnono
SQL infoSupport of SQLnonoA subset of ANSI SQL is implemented
APIs and other access methodsFuseki infoREST-style SPARQL HTTP Interface
Jena RDF API
RIO infoRDF Input/Output
Proprietary protocolRESTful HTTP API
Supported programming languagesJava.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
C#
C++
Python
Server-side scripts infoStored proceduresyesnono
Triggersyes infovia event handlernono
Partitioning methods infoMethods for storing different data on different nodesnonenoneFixed-grid hypercubes
Replication methods infoMethods for redundantly storing data on multiple nodesnonenone infoRepcached, a Memcached patch, provides this functionallityReal-time block device replication (DRBD)
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency
Foreign keys infoReferential integritynono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACID infoTDB Transactionsnono
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesnoyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.no
User concepts infoAccess controlAccess control via Jena Securityyes infousing SASL (Simple Authentication and Security Layer) protocolyes

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More resources
Apache Jena - TDBMemcachedSpaceTime
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