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

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

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Editorial information provided by DB-Engines
NameApache Jena - TDB  Xexclude from comparisonMemcached  Xexclude from comparisonSpaceTime  Xexclude from comparisonTimescaleDB  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.A time series DBMS optimized for fast ingest and complex queries, based on PostgreSQL
Primary database modelRDF storeKey-value storeSpatial DBMSTime Series DBMS
Secondary database modelsRelational DBMSRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score3.62
Rank#83  Overall
#3  RDF stores
Score18.08
Rank#32  Overall
#4  Key-value stores
Score0.03
Rank#392  Overall
#8  Spatial DBMS
Score4.46
Rank#71  Overall
#5  Time Series DBMS
Websitejena.apache.org/­documentation/­tdb/­index.htmlwww.memcached.orgwww.mireo.com/­spacetimewww.timescale.com
Technical documentationjena.apache.org/­documentation/­tdb/­index.htmlgithub.com/­memcached/­memcached/­wikidocs.timescale.com
DeveloperApache Software Foundation infooriginally developed by HP LabsDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournalMireoTimescale
Initial release2000200320202017
Current release4.9.0, July 20231.6.27, May 20242.15.0, May 2024
License infoCommercial or Open SourceOpen Source infoApache License, Version 2.0Open Source infoBSD licensecommercialOpen 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 languageJavaCC++C
Server operating systemsAll OS with a Java VMFreeBSD
Linux
OS X
Unix
Windows
LinuxLinux
OS X
Windows
Data schemeyes infoRDF Schemasschema-freeyesyes
Typing infopredefined data types such as float or dateyesnoyesnumerics, strings, booleans, arrays, JSON blobs, geospatial dimensions, currencies, binary data, other complex data types
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.noyes
Secondary indexesyesnonoyes
SQL infoSupport of SQLnonoA subset of ANSI SQL is implementedyes infofull PostgreSQL SQL syntax
APIs and other access methodsFuseki infoREST-style SPARQL HTTP Interface
Jena RDF API
RIO infoRDF Input/Output
Proprietary protocolRESTful HTTP APIADO.NET
JDBC
native C library
ODBC
streaming API for large objects
Supported programming languagesJava.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
C#
C++
Python
.Net
C
C++
Delphi
Java infoJDBC
JavaScript
Perl
PHP
Python
R
Ruby
Scheme
Tcl
Server-side scripts infoStored proceduresyesnonouser defined functions, PL/pgSQL, PL/Tcl, PL/Perl, PL/Python, PL/Java, PL/PHP, PL/R, PL/Ruby, PL/Scheme, PL/Unix shell
Triggersyes infovia event handlernonoyes
Partitioning methods infoMethods for storing different data on different nodesnonenoneFixed-grid hypercubesyes, across time and space (hash partitioning) attributes
Replication methods infoMethods for redundantly storing data on multiple nodesnonenone infoRepcached, a Memcached patch, provides this functionallityReal-time block device replication (DRBD)Source-replica replication with hot standby and reads on replicas info
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACID infoTDB TransactionsnonoACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesnoyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nono
User concepts infoAccess controlAccess control via Jena Securityyes infousing SASL (Simple Authentication and Security Layer) protocolyesfine grained access rights according to SQL-standard

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More resources
Apache Jena - TDBMemcachedSpaceTimeTimescaleDB
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