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DBMS > 4D vs. JSqlDb vs. LevelDB vs. NCache vs. RDFox

System Properties Comparison 4D vs. JSqlDb vs. LevelDB vs. NCache vs. RDFox

Editorial information provided by DB-Engines
Name4D infoformer name: 4th Dimension  Xexclude from comparisonJSqlDb  Xexclude from comparisonLevelDB  Xexclude from comparisonNCache  Xexclude from comparisonRDFox  Xexclude from comparison
JSqlDB seems to be discontinued. Therefore it is excluded from the DB-Engines ranking.
DescriptionApplication development environment with integrated database management systemJavaScript Query Language Database, stores JavaScript objects and primitivesEmbeddable fast key-value storage library that provides an ordered mapping from string keys to string valuesOpen-Source and Enterprise in-memory Key-Value StoreHigh performance knowledge graph and semantic reasoning engine
Primary database modelRelational DBMSDocument store
Object oriented DBMS
Key-value storeKey-value storeGraph DBMS
RDF store
Secondary database modelsDocument store
Search engine infoUsing distributed Lucene
Relational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score2.47
Rank#110  Overall
#54  Relational DBMS
Score2.25
Rank#115  Overall
#19  Key-value stores
Score0.96
Rank#195  Overall
#29  Key-value stores
Score0.29
Rank#300  Overall
#24  Graph DBMS
#13  RDF stores
Websitewww.4d.comjsqldb.org (offline)github.com/­google/­leveldbwww.alachisoft.com/­ncachewww.oxfordsemantic.tech
Technical documentationdeveloper.4d.comgithub.com/­google/­leveldb/­blob/­main/­doc/­index.mdwww.alachisoft.com/­resources/­docsdocs.oxfordsemantic.tech
Developer4D, IncKonrad von BackstromGoogleAlachisoftOxford Semantic Technologies
Initial release19842018201120052017
Current releasev20, April 20230.8, December 20181.23, February 20215.3.3, April 20246.0, Septermber 2022
License infoCommercial or Open SourcecommercialOpen SourceOpen Source infoBSDOpen Source infoEnterprise Edition availablecommercial
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC++C#, .NET, .NET Core, JavaC++
Server operating systemsOS X
Windows
Linux
macOS
Windows
Illumos
Linux
OS X
Windows
Linux
Windows
Linux
macOS
Windows
Data schemeyesschema-freeschema-freeschema-freeyes infoRDF schemas
Typing infopredefined data types such as float or dateyesnonopartial infoSupported data types are Lists, Queues, Hashsets, Dictionary and Counteryes
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.yesnonono
Secondary indexesyesnonoyes
SQL infoSupport of SQLyes infoclose to SQL 92nonoSQL-like query syntax and LINQ for searching the cache. Cache Synchronization with SQL Server using SQL dependency.no
APIs and other access methodsODBC
RESTful HTTP API infoby using 4D Mobile
SOAP webservices
IDistributedCache
JCache
LINQ
Proprietary native API
RESTful HTTP API
SPARQL 1.1
Supported programming languages4D proprietary IDE
PHP
JavaScriptC++
Go
Java info3rd party binding
JavaScript (Node.js) info3rd party binding
Python info3rd party binding
.Net
.Net Core
C#
Java
JavaScript (Node.js)
Python
Scala
C
Java
Server-side scripts infoStored proceduresyesfunctions in JavaScriptnono infosupport for stored procedures with SQL-Server CLR
Triggersyesnonoyes infoNotifications
Partitioning methods infoMethods for storing different data on different nodesnonenonenoneyes
Replication methods infoMethods for redundantly storing data on multiple nodesMulti-source replicationnonenoneyes, with selectable consistency levelreplication via a shared file system
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononoyes
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyEventual Consistency
Immediate Consistency
Strong Eventual Consistency over WAN with Conflict Resolution using Bridge Topology
Immediate Consistency in stand-alone mode, Eventual Consistency in replicated setups
Foreign keys infoReferential integrityyesnonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnooptimistic locking and pessimistic lockingACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyes infousing RocksDByes infowith automatic compression on writesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesyes
User concepts infoAccess controlUsers and groupsnoAuthentication to access the cache via Active Directory/LDAP (possible roles: user, administrator)Roles, resources, and access types
More information provided by the system vendor
4D infoformer name: 4th DimensionJSqlDbLevelDBNCacheRDFox
Specific characteristicsNCache has been the market leader in .NET Distributed Caching since 2005 . NCache...
» more
Competitive advantagesNCache is 100% .NET/ .NET Core based which fully supports ASP.NET Core Sessions ,...
» more
Typical application scenariosNCache enables industries like retail, finance, banking IoT, travel, ecommerce, healthcare...
» more
Key customersBank of America, Citi, Natures Way, Charter Spectrum, Barclays, Henry Schein, GBM,...
» more
Market metricsMarket Leader in .NET Distributed Caching since 2005.
» more
Licensing and pricing modelsNCache Open Source is free on an as-is basis without any support. NCache Enterprise...
» more

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4D infoformer name: 4th DimensionJSqlDbLevelDBNCacheRDFox
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