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DBMS > Adabas vs. Amazon DocumentDB vs. Realm

System Properties Comparison Adabas vs. Amazon DocumentDB vs. Realm

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Editorial information provided by DB-Engines
NameAdabas infodenotes "adaptable data base"  Xexclude from comparisonAmazon DocumentDB  Xexclude from comparisonRealm  Xexclude from comparison
DescriptionOLTP - DBMS for mainframes and Linux/Unix/Windows environments infoused typically together with the Natural programming platformFast, scalable, highly available, and fully managed MongoDB-compatible database serviceA mobile DBMS often used as a replacement for SQLite
Primary database modelMultivalue DBMSDocument storeRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score4.16
Rank#69  Overall
#1  Multivalue DBMS
Score0.55
Rank#194  Overall
#27  Document stores
Score7.92
Rank#44  Overall
#27  Relational DBMS
Websitewww.softwareag.com/­corporate/­products/­adabas_natural/­adabas/­default.htmlaws.amazon.com/­documentdbrealm.io
Technical documentationaws.amazon.com/­documentdb/­resourcesrealm.io/­docs
DeveloperSoftware AGRealm, acquired by MongoDB in May 2019
Initial release197120192014
License infoCommercial or Open Sourcecommercialcommercialcommercial infoLicenses are free. Parts are open sourced.
Cloud-based only infoOnly available as a cloud servicenoyesno
DBaaS offerings (sponsored links) infoDatabase as a Service

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Server operating systemsBS2000
Linux
Unix
Windows
z/OS
z/VSE
hostedserver-less
Data schemeyesschema-freeyes
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 Gatewaynono
APIs and other access methodsHTTP API infowith add-on software Adabas SOA Gateway
SOAP-based API infowith add-on software Adabas SOA Gateway
proprietary protocol using JSON (MongoDB compatible)
Supported programming languagesNaturalGo
Java
JavaScript (Node.js)
PHP
Python
Java infowith Android only
Objective-C
React Native
Swift
Server-side scripts infoStored proceduresin Naturalnono
Triggersnonoyes infoChange Listeners
Partitioning methods infoMethods for storing different data on different nodesyes, with additonal products like Adabas Cluster Services, Adabas Parallel Services, Adabas Vistanonenone
Replication methods infoMethods for redundantly storing data on multiple nodesyes, with add-on product Event ReplicatorMulti-availability zones for high availability, asynchronous replication for up to 15 read replicasnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono infomay be implemented via Amazon Elastic MapReduce (Amazon EMR)no
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynono infotypically not used, however similar functionality with DBRef possibleno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDAtomic single-document operationsACID
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.noyes infoIn-Memory realm
User concepts infoAccess controlonly with OS-specific tools (e.g. IBM RACF, CA Top Secret)Access rights for users and rolesno

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More resources
Adabas infodenotes "adaptable data base"Amazon DocumentDBRealm
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Recent citations in the news

Goldman Sachs Group Analysts Give Software (ETR:SOW) a €36.00 Price Target
21 October 2019, Slater Sentinel

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

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

JPMorgan Chase & Co. Reiterates €26.00 Price Target for Software (ETR:SOW)
12 October 2019, Riverton Roll

Software (ETR:SOW) Given a €26.00 Price Target at JPMorgan Chase & Co.
5 October 2019, Riverton Roll

provided by Google News

AWS Announces Amazon DocumentDB (with MongoDB Compatibility)
9 January 2019, Business Wire

DocumentDB vs. DynamoDB: Compare AWS NoSQL databases
26 April 2019, TechTarget

How We'll Know If Amazon's DocumentDB Is Hurting MongoDB
21 March 2019, The Motley Fool

Amazon DocumentDB Speeds Up With Slow Queries Logging
20 August 2019, Computer Business Review

AWS's DocumentDB Takes Aim at MongoDB
11 January 2019, Light Reading

provided by Google News

Realm Makes PostgreSQL Real-Time with New Connector
21 March 2017, Database Trends and Applications

Realm Receives Investment from Ericsson Ventures to Advance Development of Edge Computing Solutions
21 September 2017, Business Wire

Realm explains the benefits of real-time collaboration for mobile apps
24 October 2016, App Developer Magazine

Realm Launches Realm Mobile Platform Professional Edition to Drive Collaborative Realtime Applications
12 December 2016, Business Wire

Realm Platform 2.0 Is Significant Step Forward for Building Responsive and Real-Time Mobile Applications
17 October 2017, Business Wire

provided by Google News

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