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DBMS > Adabas vs. NCache vs. Oracle Rdb vs. RethinkDB

System Properties Comparison Adabas vs. NCache vs. Oracle Rdb vs. RethinkDB

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Editorial information provided by DB-Engines
NameAdabas infodenotes "adaptable data base"  Xexclude from comparisonNCache  Xexclude from comparisonOracle Rdb  Xexclude from comparisonRethinkDB  Xexclude from comparison
DescriptionOLTP - DBMS for mainframes and Linux/Unix/Windows environments infoused typically together with the Natural programming platformOpen source in-memory key-value storeDBMS for the Web with a mechanism to push updated query results to applications in realtime.
Primary database modelMultivalue DBMSKey-value storeRelational DBMSDocument store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score4.66
Rank#68  Overall
#1  Multivalue DBMS
Score0.94
Rank#157  Overall
#26  Key-value stores
Score0.99
Rank#153  Overall
#74  Relational DBMS
Score3.76
Rank#77  Overall
#13  Document stores
Websitewww.softwareag.com/­corporate/­products/­adabas_natural/­adabas/­default.htmlwww.alachisoft.com/­ncachewww.oracle.com/­technetwork/­database/­database-technologies/­rdb/­overview/­index.htmlrethinkdb.com
Technical documentationwww.alachisoft.com/­resources/­docsrethinkdb.com/­docs
DeveloperSoftware AGAlachisoftOracle, originally developed by Digital Equipment Corporation (DEC)The Linux Foundation infosince July 2017
Initial release1971200419842009
Current release5.0, May 20192.4.0, December 2019
License infoCommercial or Open SourcecommercialOpen Source infoApache 2.0commercialOpen Source infoApache Version 2
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC#, C++, .NETC++
Server operating systemsBS2000
Linux
Unix
Windows
z/OS
z/VSE
WindowsHP Open VMSLinux
OS X
Windows
Data schemeyesschema-freeFlexible Schema (defined schema, partial schema, schema free)schema-free
Typing infopredefined data types such as float or dateyesyesyes infostring, binary, float, bool, date, geometry
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.nononono
Secondary indexesyesyesyesyes
SQL infoSupport of SQLyes infowith add-on product Adabas SQL GatewaySQL-like query syntax (OQL) for searching the cacheyesno
APIs and other access methodsHTTP API infowith add-on software Adabas SOA Gateway
SOAP-based API infowith add-on software Adabas SOA Gateway
LINQ
Proprietary protocol
Supported programming languagesNatural.Net
C#
Java
Visual Basic.NET
C infocommunity-supported driver
C# infocommunity-supported driver
C++ infocommunity-supported driver
Clojure infocommunity-supported driver
Dart infocommunity-supported driver
Erlang infocommunity-supported driver
Go infocommunity-supported driver
Haskell infocommunity-supported driver
Java infoofficial driver
JavaScript (Node.js) infoofficial driver
Lisp infocommunity-supported driver
Lua infocommunity-supported driver
Objective-C infocommunity-supported driver
Perl infocommunity-supported driver
PHP infocommunity-supported driver
Python infoofficial driver
Ruby infoofficial driver
Scala infocommunity-supported driver
Server-side scripts infoStored proceduresin Naturalno infosupport for stored procedures with SQL-Server CLR
Triggersnoyes infoNotificationsClient-side triggers through changefeeds
Partitioning methods infoMethods for storing different data on different nodesyes, with additonal products like Adabas Cluster Services, Adabas Parallel Services, Adabas VistayesSharding inforange based
Replication methods infoMethods for redundantly storing data on multiple nodesyes, with add-on product Event Replicatoryes, with selectable consistency levelMaster-slave replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesnoyes
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual Consistency
Immediate Consistency
Immediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDoptimistic lockingyes, on a single nodeAtomic single-document operations
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes infoMVCC based
Durability infoSupport for making data persistentyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesnono
User concepts infoAccess controlonly with OS-specific tools (e.g. IBM RACF, CA Top Secret)authentification to access the cache via Active Directory/LDAP (possible roles: user, administrator)yes infousers and table-level permissions
More information provided by the system vendor
Adabas infodenotes "adaptable data base"NCacheOracle RdbRethinkDB
Specific characteristicsNCache has been the market leader in .NET Distributed Caching for the last 13 years....
» more
Competitive advantagesNcache is 100% .NET with ASP.NET Session State storage, ASP.NET View State Caching,...
» more
Typical application scenariosNCache enables industries and users including users doing: Fraud Detection, Retail...
» more
Key customersBank of America, Citi, Natures Way, Charter Spectrum, Barclays, Henry Schein, GBM,...
» more
Market metricsMarket Leader in .NET Distributed Caching for the last 13 years.
» more
Licensing and pricing modelsThe NCache Enterprise licensing model is according to the number of nodes and shards...
» more
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