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DBMS > Memcached vs. RDFox vs. SAP Advantage Database Server

System Properties Comparison Memcached vs. RDFox vs. SAP Advantage Database Server

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Editorial information provided by DB-Engines
NameMemcached  Xexclude from comparisonRDFox  Xexclude from comparisonSAP Advantage Database Server infoformer name: Sybase ADS  Xexclude from comparison
SAP Advantage Database Server seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.
DescriptionIn-memory key-value store, originally intended for cachingHigh performance knowledge graph and semantic reasoning engineLow-cost RDBMS with access to ISAM and FoxPro data structures
Primary database modelKey-value storeGraph DBMS
RDF store
Relational DBMS
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score19.42
Rank#32  Overall
#4  Key-value stores
Score0.23
Rank#308  Overall
#25  Graph DBMS
#14  RDF stores
Websitewww.memcached.orgwww.oxfordsemantic.techwww.sap.com/products/advantage-database-server.html
Technical documentationgithub.com/­memcached/­memcached/­wikidocs.oxfordsemantic.tech
DeveloperDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournalOxford Semantic TechnologiesSybase, SAP
Initial release200320171993
Current release1.6.25, March 20246.0, Septermber 2022
License infoCommercial or Open SourceOpen Source infoBSD licensecommercialcommercial
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageCC++
Server operating systemsFreeBSD
Linux
OS X
Unix
Windows
Linux
macOS
Windows
Linux
Windows
Data schemeschema-freeyes infoRDF schemasyes
Typing infopredefined data types such as float or datenoyesyes
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 indexesnoyes
SQL infoSupport of SQLnonoyes
APIs and other access methodsProprietary protocolRESTful HTTP API
SPARQL 1.1
.NET Client API
ADO.NET
JDBC
ODBC
OLE DB
Supported programming languages.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
C
Java
Delphi
Perl
PHP
Server-side scripts infoStored proceduresnoyes
Triggersnoyes
Partitioning methods infoMethods for storing different data on different nodesnonenone
Replication methods infoMethods for redundantly storing data on multiple nodesnone infoRepcached, a Memcached patch, provides this functionallityreplication via a shared file systemMulti-source replication infoCONFLICT Trigger to resolve replication conflicts
Source-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency in stand-alone mode, Eventual Consistency in replicated setupsImmediate Consistency
Foreign keys infoReferential integritynoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentnoyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesno infocaching of (temporary) tables can be configured
User concepts infoAccess controlyes infousing SASL (Simple Authentication and Security Layer) protocolRoles, resources, and access typesfine grained access rights according to SQL-standard

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More resources
MemcachedRDFoxSAP Advantage Database Server infoformer name: Sybase ADS
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