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DBMS > LevelDB vs. Oracle Coherence vs. Oracle Rdb vs. RavenDB vs. RDF4J

System Properties Comparison LevelDB vs. Oracle Coherence vs. Oracle Rdb vs. RavenDB vs. RDF4J

Editorial information provided by DB-Engines
NameLevelDB  Xexclude from comparisonOracle Coherence  Xexclude from comparisonOracle Rdb  Xexclude from comparisonRavenDB  Xexclude from comparisonRDF4J infoformerly known as Sesame  Xexclude from comparison
DescriptionEmbeddable fast key-value storage library that provides an ordered mapping from string keys to string valuesOracles in-memory data grid solutionOpen Source Operational and Transactional Enterprise NoSQL Document DatabaseRDF4J is a Java framework for processing RDF data, supporting both memory-based and a disk-based storage.
Primary database modelKey-value storeKey-value storeRelational DBMSDocument storeRDF store
Secondary database modelsGraph DBMS
Spatial DBMS
Time Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score3.32
Rank#100  Overall
#16  Key-value stores
Score2.32
Rank#126  Overall
#23  Key-value stores
Score1.23
Rank#180  Overall
#82  Relational DBMS
Score3.47
Rank#95  Overall
#16  Document stores
Score0.72
Rank#234  Overall
#9  RDF stores
Websitegithub.com/­google/­leveldbwww.oracle.com/­java/­coherencewww.oracle.com/­database/­technologies/­related/­rdb.htmlravendb.netrdf4j.org
Technical documentationgithub.com/­google/­leveldb/­blob/­main/­doc/­index.mddocs.oracle.com/­en/­middleware/­standalone/­coherencewww.oracle.com/­database/­technologies/­related/­rdb-doc.htmlravendb.net/­docsrdf4j.org/­documentation
DeveloperGoogleOracleOracle, originally developed by Digital Equipment Corporation (DEC)Hibernating RhinosSince 2016 officially forked into an Eclipse project, former developer was Aduna Software.
Initial release20112007198420102004
Current release1.23, February 202114.1, August 20237.4.1.1, 20215.4, July 2022
License infoCommercial or Open SourceOpen Source infoBSDcommercialcommercialOpen Source infoAGPL version 3, commercial license availableOpen Source infoEclipse Distribution License (EDL), v1.0.
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC++JavaC#Java
Server operating systemsIllumos
Linux
OS X
Windows
All OS with a Java VMHP Open VMSLinux
macOS
Raspberry Pi
Windows
Linux
OS X
Unix
Windows
Data schemeschema-freeschema-freeFlexible Schema (defined schema, partial schema, schema free)schema-freeyes infoRDF Schemas
Typing infopredefined data types such as float or datenoyesyesnoyes
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.nonono
Secondary indexesnonoyesyesyes
SQL infoSupport of SQLnonoyesSQL-like query language (RQL)no
APIs and other access methodsJCache
JPA
RESTful HTTP API
.NET Client API
F# Client API
Go Client API
Java Client API
NodeJS Client API
PHP Client API
Python Client API
RESTful HTTP API
Java API
RIO infoRDF Input/Output
Sail API
SeRQL infoSesame RDF Query Language
Sesame REST HTTP Protocol
SPARQL
Supported programming languagesC++
Go
Java info3rd party binding
JavaScript (Node.js) info3rd party binding
Python info3rd party binding
.Net
C++
Java
.Net
C#
F#
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby
Java
PHP
Python
Server-side scripts infoStored proceduresnonoyesyes
Triggersnoyes infoLive Eventsyesyes
Partitioning methods infoMethods for storing different data on different nodesnoneShardingShardingnone
Replication methods infoMethods for redundantly storing data on multiple nodesnoneyes, with selectable consistency levelMulti-source replicationnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononoyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual Consistency
Immediate Consistency
Immediate ConsistencyDefault ACID transactions on the local node (eventually consistent across the cluster). Atomic operations with cluster-wide ACID transactions. Eventual consistency for indexes and full-text search indexes.
Foreign keys infoReferential integritynonoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoconfigurableyes, on a single nodeACID, Cluster-wide transaction availableACID infoIsolation support depends on the API used
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes
Durability infoSupport for making data persistentyes infowith automatic compression on writesyes infooptionallyyesyesyes infoin-memory storage is supported as well
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesno
User concepts infoAccess controlnoauthentification to access the cache via certificates or http basic authenticationAuthorization levels configured per client per databaseno

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More resources
LevelDBOracle CoherenceOracle RdbRavenDBRDF4J infoformerly known as Sesame
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