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DBMS > Adabas vs. AlaSQL vs. Couchbase vs. MaxDB vs. OpenMLDB

System Properties Comparison Adabas vs. AlaSQL vs. Couchbase vs. MaxDB vs. OpenMLDB

Editorial information provided by DB-Engines
NameAdabas infodenotes "adaptable data base"  Xexclude from comparisonAlaSQL  Xexclude from comparisonCouchbase infoOriginally called Membase  Xexclude from comparisonMaxDB infoformerly named Adabas-D  Xexclude from comparisonOpenMLDB  Xexclude from comparison
DescriptionOLTP - DBMS for mainframes and Linux/Unix/Windows environments infoused typically together with the Natural programming platformJavaScript DBMS libraryA distributed document store with integrated cache, a powerful search engine, in-built operational and analytical capabilities, and an embedded mobile databaseA robust and reliable RDBMS optimized to run all major SAP solutionsAn open-source machine learning database that provides a feature platform for training and inference
Primary database modelMultivalue DBMSDocument store
Relational DBMS
Document storeRelational DBMSTime Series DBMS
Secondary database modelsKey-value store infooriginating from the former Membase product and supporting the Memcached protocol
Spatial DBMS infousing the Geocouch extension
Search engine
Time Series DBMS
Vector DBMS
Relational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score3.58
Rank#91  Overall
#1  Multivalue DBMS
Score0.49
Rank#259  Overall
#40  Document stores
#120  Relational DBMS
Score18.46
Rank#36  Overall
#5  Document stores
Score2.65
Rank#111  Overall
#55  Relational DBMS
Score0.04
Rank#376  Overall
#39  Time Series DBMS
Websitewww.softwareag.com/­en_corporate/­platform/­adabas-natural.htmlalasql.orgwww.couchbase.commaxdb.sap.comopenmldb.ai
Technical documentationgithub.com/­AlaSQL/­alasqldocs.couchbase.commaxdb.sap.com/­documentationopenmldb.ai/­docs/­zh/­main
DeveloperSoftware AGAndrey Gershun & Mathias R. WulffCouchbase, Inc.SAP, acquired from Software AG (Adabas-D) in 19974 Paradigm Inc.
Initial release19712014201119842020
Current releaseServer: 7.2, June 2023; Mobile: 3.1, March 2022; Couchbase Capella (DBaaS), June 20237.9.10.12, February 20242024-2 February 2024
License infoCommercial or Open SourcecommercialOpen Source infoMIT-LicenseOpen Source infoBusiness Source License (BSL 1.1); Commercial licenses also availablecommercial infoLimited community edition freeOpen Source
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaScriptC, C++, Go and ErlangC++C++, Java, Scala
Server operating systemsBS2000
Linux
Unix
Windows
z/OS
z/VSE
server-less, requires a JavaScript environment (browser, Node.js)Linux
OS X
Windows
AIX
HP-UX
Linux
Solaris
Windows
Linux
Data schemeyesschema-freeschema-freeyesFixed schema
Typing infopredefined data types such as float or dateyesnoyesyesyes
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 indexesyesnoyesyesyes
SQL infoSupport of SQLyes infowith add-on product Adabas SQL GatewayClose to SQL99, but no user access control, stored procedures and host language bindings.SQL++, extends ANSI SQL to JSON for operational, transactional, and analytic use casesyesyes
APIs and other access methodsHTTP API infowith add-on software Adabas SOA Gateway
SOAP-based API infowith add-on software Adabas SOA Gateway
JavaScript APICLI Client
HTTP REST
Kafka Connector
Native language bindings for CRUD, Query, Search and Analytics APIs
Spark Connector
Spring Data
ADO.NET
JDBC
ODBC
WebDAV
JDBC
SQLAlchemy
Supported programming languagesNaturalJavaScript.Net
C
Go
Java
JavaScript infoNode.js
Kotlin
PHP
Python
Ruby
Scala
.Net
C#
Java
Perl
PHP
Python
C++
Go
Java
Python
Scala
Server-side scripts infoStored proceduresin NaturalnoFunctions and timers in JavaScript and UDFs in Java, Python, SQL++yesno
Triggersnoyesyes infovia the TAP protocolyesno
Partitioning methods infoMethods for storing different data on different nodesyes, with additonal products like Adabas Cluster Services, Adabas Parallel Services, Adabas VistanoneAutomatic Shardingnonehorizontal partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesyes, with add-on product Event ReplicatornoneMulti-source replication infoincluding cross data center replication
Source-replica replication
Source-replica replicationSource-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonoyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencynoneEventual Consistency
Immediate Consistency infoselectable on a per-operation basis
Immediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyesnoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDyes infoonly for local storage and DOM-storageACIDACIDno
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyes infoby using IndexedDB, SQL.JS or proprietary FileStorageyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesyes infoEphemeral bucketsnoyes
User concepts infoAccess controlonly with OS-specific tools (e.g. IBM RACF, CA Top Secret)noUser and Administrator separation with password-based and LDAP integrated Authentication. Role-base access control.fine grained access rights according to SQL-standardfine grained access rights according to SQL-standard

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More resources
Adabas infodenotes "adaptable data base"AlaSQLCouchbase infoOriginally called MembaseMaxDB infoformerly named Adabas-DOpenMLDB
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