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DBMS > Datomic vs. Graph Engine vs. IBM Cloudant vs. InterSystems Caché vs. searchxml

System Properties Comparison Datomic vs. Graph Engine vs. IBM Cloudant vs. InterSystems Caché vs. searchxml

Editorial information provided by DB-Engines
NameDatomic  Xexclude from comparisonGraph Engine infoformer name: Trinity  Xexclude from comparisonIBM Cloudant  Xexclude from comparisonInterSystems Caché  Xexclude from comparisonsearchxml  Xexclude from comparison
Caché is a deprecated database engine which is substituted with InterSystems IRIS. It therefore is removed from the DB-Engines Ranking.
DescriptionDatomic builds on immutable values, supports point-in-time queries and uses 3rd party systems for durabilityA distributed in-memory data processing engine, underpinned by a strongly-typed RAM store and a general distributed computation engineDatabase as a Service offering based on Apache CouchDBA multi-model DBMS and application serverDBMS for structured and unstructured content wrapped with an application server
Primary database modelRelational DBMSGraph DBMS
Key-value store
Document storeKey-value store
Object oriented DBMS
Relational DBMS
Native XML DBMS
Search engine
Secondary database modelsDocument store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.66
Rank#144  Overall
#66  Relational DBMS
Score0.67
Rank#232  Overall
#21  Graph DBMS
#34  Key-value stores
Score2.75
Rank#104  Overall
#19  Document stores
Score0.03
Rank#390  Overall
#7  Native XML DBMS
#24  Search engines
Websitewww.datomic.comwww.graphengine.iowww.ibm.com/­products/­cloudantwww.intersystems.com/­products/­cachewww.searchxml.net/­category/­products
Technical documentationdocs.datomic.comwww.graphengine.io/­docs/­manualcloud.ibm.com/­docs/­Cloudantdocs.intersystems.comwww.searchxml.net/­support/­handouts
DeveloperCognitectMicrosoftIBM, Apache Software Foundation infoIBM acquired Cloudant in February 2014InterSystemsinformationpartners gmbh
Initial release20122010201019972015
Current release1.0.7075, December 20232018.1.4, May 20201.0
License infoCommercial or Open Sourcecommercial infolimited edition freeOpen Source infoMIT Licensecommercialcommercialcommercial
Cloud-based only infoOnly available as a cloud servicenonoyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJava, Clojure.NET and CErlangC++
Server operating systemsAll OS with a Java VM.NEThostedAIX
HP Open VMS
HP-UX
Linux
OS X
Solaris
Windows
Windows
Data schemeyesyesschema-freedepending on used data modelschema-free
Typing infopredefined data types such as float or dateyesyesnoyesyes
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.nononoyesyes
Secondary indexesyesyesyesyes
SQL infoSupport of SQLnononoyesno
APIs and other access methodsRESTful HTTP APIRESTful HTTP APIRESTful HTTP/JSON API.NET Client API
JDBC
ODBC
RESTful HTTP API
RESTful HTTP API
WebDAV
XQuery
XSLT
Supported programming languagesClojure
Java
C#
C++
F#
Visual Basic
C#
Java
JavaScript
Objective-C
PHP
Ruby
C#
C++
Java
C++ infomost other programming languages supported via APIs
Server-side scripts infoStored proceduresyes infoTransaction FunctionsyesView functions (Map-Reduce) in JavaScriptyesyes infoon the application server
TriggersBy using transaction functionsnoyesyesno
Partitioning methods infoMethods for storing different data on different nodesnone infoBut extensive use of caching in the application peershorizontal partitioningShardingnonenone
Replication methods infoMethods for redundantly storing data on multiple nodesnone infoBut extensive use of caching in the application peersMulti-source replication
Source-replica replication
Source-replica replicationyes infosychronisation to multiple collections
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynononoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnono infoatomic operations within a document possibleACIDmultiple readers, single writer
Concurrency infoSupport for concurrent manipulation of datayesyesyes infoOptimistic lockingyesyes
Durability infoSupport for making data persistentyes infousing external storage systems (e.g. Cassandra, DynamoDB, PostgreSQL, Couchbase and others)optional: either by committing a write-ahead log (WAL) to the local persistent storage or by dumping the memory to a persistent storageyesyesyes
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 developmentyesnoyesno
User concepts infoAccess controlnoAccess rights for users can be defined per databaseAccess rights for users, groups and rolesDomain, group and role-based access control at the document level and for application services

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More resources
DatomicGraph Engine infoformer name: TrinityIBM CloudantInterSystems Cachésearchxml
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