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DBMS > LevelDB vs. RDF4J vs. searchxml vs. Sequoiadb vs. SQL.JS

System Properties Comparison LevelDB vs. RDF4J vs. searchxml vs. Sequoiadb vs. SQL.JS

Editorial information provided by DB-Engines
NameLevelDB  Xexclude from comparisonRDF4J infoformerly known as Sesame  Xexclude from comparisonsearchxml  Xexclude from comparisonSequoiadb  Xexclude from comparisonSQL.JS  Xexclude from comparison
DescriptionEmbeddable fast key-value storage library that provides an ordered mapping from string keys to string valuesRDF4J is a Java framework for processing RDF data, supporting both memory-based and a disk-based storage.DBMS for structured and unstructured content wrapped with an application serverNewSQL database with distributed OLTP and SQLPort of SQLite to JavaScript
Primary database modelKey-value storeRDF storeNative XML DBMS
Search engine
Document store
Relational DBMS
Relational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score2.35
Rank#111  Overall
#19  Key-value stores
Score0.69
Rank#230  Overall
#9  RDF stores
Score0.00
Rank#383  Overall
#7  Native XML DBMS
#25  Search engines
Score0.45
Rank#261  Overall
#41  Document stores
#122  Relational DBMS
Score0.53
Rank#252  Overall
#116  Relational DBMS
Websitegithub.com/­google/­leveldbrdf4j.orgwww.searchxml.net/­category/­productswww.sequoiadb.comsql.js.org
Technical documentationgithub.com/­google/­leveldb/­blob/­main/­doc/­index.mdrdf4j.org/­documentationwww.searchxml.net/­support/­handoutswww.sequoiadb.com/­en/­index.php?m=Files&a=indexsql.js.org/­documentation/­index.html
DeveloperGoogleSince 2016 officially forked into an Eclipse project, former developer was Aduna Software.informationpartners gmbhSequoiadb Ltd.Alon Zakai infoenhancements implemented by others
Initial release20112004201520132012
Current release1.23, February 20211.0
License infoCommercial or Open SourceOpen Source infoBSDOpen Source infoEclipse Distribution License (EDL), v1.0.commercialOpen Source infoServer: AGPL; Client: Apache V2Open Source
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC++JavaC++C++JavaScript
Server operating systemsIllumos
Linux
OS X
Windows
Linux
OS X
Unix
Windows
WindowsLinuxserver-less, requires a JavaScript environment (browser, Node.js)
Data schemeschema-freeyes infoRDF Schemasschema-freeschema-freeyes
Typing infopredefined data types such as float or datenoyesyesyes infooid, date, timestamp, binary, regexyes
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.noyesnono
Secondary indexesnoyesyesyes
SQL infoSupport of SQLnononoSQL-like query languageyes infoSQL-92 is not fully supported
APIs and other access methodsJava API
RIO infoRDF Input/Output
Sail API
SeRQL infoSesame RDF Query Language
Sesame REST HTTP Protocol
SPARQL
RESTful HTTP API
WebDAV
XQuery
XSLT
proprietary protocol using JSONJavaScript API
Supported programming languagesC++
Go
Java info3rd party binding
JavaScript (Node.js) info3rd party binding
Python info3rd party binding
Java
PHP
Python
C++ infomost other programming languages supported via APIs.Net
C++
Java
PHP
Python
JavaScript
Server-side scripts infoStored proceduresnoyesyes infoon the application serverJavaScriptno
Triggersnoyesnonono
Partitioning methods infoMethods for storing different data on different nodesnonenonenoneShardingnone
Replication methods infoMethods for redundantly storing data on multiple nodesnonenoneyes infosychronisation to multiple collectionsSource-replica replicationnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyEventual Consistencynone
Foreign keys infoReferential integritynononoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACID infoIsolation support depends on the API usedmultiple readers, single writerDocument is locked during a transactionACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyes infowith automatic compression on writesyes infoin-memory storage is supported as wellyesyesno infoexcept by serializing a db to a file
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nonoyes
User concepts infoAccess controlnonoDomain, group and role-based access control at the document level and for application servicessimple password-based access controlno

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More resources
LevelDBRDF4J infoformerly known as SesamesearchxmlSequoiadbSQL.JS
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