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DBMS > Datomic vs. NSDb vs. Oracle Rdb vs. Quasardb vs. SpatiaLite

System Properties Comparison Datomic vs. NSDb vs. Oracle Rdb vs. Quasardb vs. SpatiaLite

Editorial information provided by DB-Engines
NameDatomic  Xexclude from comparisonNSDb  Xexclude from comparisonOracle Rdb  Xexclude from comparisonQuasardb  Xexclude from comparisonSpatiaLite  Xexclude from comparison
DescriptionDatomic builds on immutable values, supports point-in-time queries and uses 3rd party systems for durabilityScalable, High-performance Time Series DBMS designed for Real-time Analytics on top of KubernetesDistributed, high-performance timeseries databaseSpatial extension of SQLite
Primary database modelRelational DBMSTime Series DBMSRelational DBMSTime Series DBMSSpatial DBMS
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.66
Rank#144  Overall
#66  Relational DBMS
Score0.08
Rank#369  Overall
#40  Time Series DBMS
Score1.14
Rank#178  Overall
#80  Relational DBMS
Score0.21
Rank#322  Overall
#29  Time Series DBMS
Score1.63
Rank#146  Overall
#3  Spatial DBMS
Websitewww.datomic.comnsdb.iowww.oracle.com/­database/­technologies/­related/­rdb.htmlquasar.aiwww.gaia-gis.it/­fossil/­libspatialite/­index
Technical documentationdocs.datomic.comnsdb.io/­Architecturewww.oracle.com/­database/­technologies/­related/­rdb-doc.htmldoc.quasar.ai/­masterwww.gaia-gis.it/­gaia-sins/­spatialite_topics.html
DeveloperCognitectOracle, originally developed by Digital Equipment Corporation (DEC)quasardbAlessandro Furieri
Initial release20122017198420092008
Current release1.0.7075, December 20237.4.1.1, 20213.14.1, January 20245.0.0, August 2020
License infoCommercial or Open Sourcecommercial infolimited edition freeOpen Source infoApache Version 2.0commercialcommercial infoFree community edition, Non-profit organizations and non-commercial usage are eligible for free licensesOpen Source infoMPL 1.1, GPL v2.0 or LGPL v2.1
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 languageJava, ClojureJava, ScalaC++C++
Server operating systemsAll OS with a Java VMLinux
macOS
HP Open VMSBSD
Linux
OS X
Windows
server-less
Data schemeyesFlexible Schema (defined schema, partial schema, schema free)schema-freeyes
Typing infopredefined data types such as float or dateyesyes: int, bigint, decimal, stringyesyes infointeger and binaryyes
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.nonononono
Secondary indexesyesall fields are automatically indexedyesyes infowith tagsyes
SQL infoSupport of SQLnoSQL-like query languageyesSQL-like query languageyes
APIs and other access methodsRESTful HTTP APIgRPC
HTTP REST
WebSocket
HTTP API
Supported programming languagesClojure
Java
Java
Scala
.Net
C
C#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
R
Server-side scripts infoStored proceduresyes infoTransaction Functionsnonono
TriggersBy using transaction functionsnoyes
Partitioning methods infoMethods for storing different data on different nodesnone infoBut extensive use of caching in the application peersShardingSharding infoconsistent hashingnone
Replication methods infoMethods for redundantly storing data on multiple nodesnone infoBut extensive use of caching in the application peersSource-replica replication with selectable replication factornone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononowith Hadoop integrationno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonoyesnoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnoyes, on a single nodeACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes
Durability infoSupport for making data persistentyes infousing external storage systems (e.g. Cassandra, DynamoDB, PostgreSQL, Couchbase and others)Using Apache Luceneyesyes infoby using LevelDByes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes inforecommended only for testing and developmentnoyes infoTransient modeyes
User concepts infoAccess controlnoCryptographically strong user authentication and audit trailno

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More resources
DatomicNSDbOracle RdbQuasardbSpatiaLite
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