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DBMS > Adabas vs. Impala vs. Realm

System Properties Comparison Adabas vs. Impala vs. Realm

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Editorial information provided by DB-Engines
NameAdabas infodenotes "adaptable data base"  Xexclude from comparisonImpala  Xexclude from comparisonRealm  Xexclude from comparison
DescriptionOLTP - DBMS for mainframes and Linux/Unix/Windows environments infoused typically together with the Natural programming platformAnalytic DBMS for HadoopA mobile DBMS often used as a replacement for SQLite
Primary database modelMultivalue DBMSRelational DBMSRelational DBMS
Secondary database modelsDocument store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score4.16
Rank#69  Overall
#1  Multivalue DBMS
Score14.57
Rank#37  Overall
#23  Relational DBMS
Score7.92
Rank#44  Overall
#27  Relational DBMS
Websitewww.softwareag.com/­corporate/­products/­adabas_natural/­adabas/­default.htmlwww.cloudera.com/­products/­open-source/­apache-hadoop/­impala.htmlrealm.io
Technical documentationwww.cloudera.com/­documentation/­enterprise/­latest/­topics/­impala.htmlrealm.io/­docs
DeveloperSoftware AGClouderaRealm, acquired by MongoDB in May 2019
Initial release197120132014
Current release3.3.0, August 2019
License infoCommercial or Open SourcecommercialOpen Source infoApache Version 2commercial infoLicenses are free. Parts are open sourced.
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC++
Server operating systemsBS2000
Linux
Unix
Windows
z/OS
z/VSE
Linuxserver-less
Data schemeyesyesyes
Typing infopredefined data types such as float or dateyesyesyes
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 indexesyesyesyes
SQL infoSupport of SQLyes infowith add-on product Adabas SQL GatewaySQL-like DML and DDL statementsno
APIs and other access methodsHTTP API infowith add-on software Adabas SOA Gateway
SOAP-based API infowith add-on software Adabas SOA Gateway
JDBC
ODBC
Supported programming languagesNaturalAll languages supporting JDBC/ODBCJava infowith Android only
Objective-C
React Native
Swift
Server-side scripts infoStored proceduresin Naturalyes infouser defined functions and integration of map-reduceno
Triggersnonoyes infoChange Listeners
Partitioning methods infoMethods for storing different data on different nodesyes, with additonal products like Adabas Cluster Services, Adabas Parallel Services, Adabas VistaShardingnone
Replication methods infoMethods for redundantly storing data on multiple nodesyes, with add-on product Event Replicatorselectable replication factornone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyes infoquery execution via MapReduceno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnoACID
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nonoyes infoIn-Memory realm
User concepts infoAccess controlonly with OS-specific tools (e.g. IBM RACF, CA Top Secret)Access rights for users, groups and roles infobased on Apache Sentry and Kerberosno

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More resources
Adabas infodenotes "adaptable data base"ImpalaRealm
DB-Engines blog posts

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Recent citations in the news

Software AG: Q3 Due On October 22 - Wait For A Further Pullback
15 October 2019, Seeking Alpha

Software (OTCMKTS:SWDAF) Upgraded to “Buy” at Goldman Sachs Group
18 October 2019, Slater Sentinel

Software AG Announces New “Adabas & Natural 2050” Agenda
31 August 2016, Business Wire

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13 October 2019, Riverton Roll

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1 December 2017, TechTarget

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