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DBMS > Adabas vs. EventStoreDB vs. JSqlDb vs. Memcached vs. NebulaGraph

System Properties Comparison Adabas vs. EventStoreDB vs. JSqlDb vs. Memcached vs. NebulaGraph

Editorial information provided by DB-Engines
NameAdabas infodenotes "adaptable data base"  Xexclude from comparisonEventStoreDB  Xexclude from comparisonJSqlDb  Xexclude from comparisonMemcached  Xexclude from comparisonNebulaGraph  Xexclude from comparison
JSqlDB seems to be discontinued. Therefore it is excluded from the DB-Engines ranking.
DescriptionOLTP - DBMS for mainframes and Linux/Unix/Windows environments infoused typically together with the Natural programming platformIndustrial-strength, open-source database solution built from the ground up for event sourcing.JavaScript Query Language Database, stores JavaScript objects and primitivesIn-memory key-value store, originally intended for cachingA distributed, linear scalable, high perfomant Graph DBMS
Primary database modelMultivalue DBMSEvent StoreDocument store
Object oriented DBMS
Key-value storeGraph DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score2.79
Rank#102  Overall
#2  Multivalue DBMS
Score1.19
Rank#173  Overall
#1  Event Stores
Score18.08
Rank#32  Overall
#4  Key-value stores
Score2.23
Rank#116  Overall
#10  Graph DBMS
Websitewww.softwareag.com/­en_corporate/­platform/­adabas-natural.htmlwww.eventstore.comjsqldb.org (offline)www.memcached.orggithub.com/­vesoft-inc/­nebula
www.nebula-graph.io
Technical documentationdevelopers.eventstore.comgithub.com/­memcached/­memcached/­wikidocs.nebula-graph.io
DeveloperSoftware AGEvent Store LimitedKonrad von BackstromDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournalVesoft Inc.
Initial release19712012201820032019
Current release21.2, February 20210.8, December 20181.6.27, May 2024
License infoCommercial or Open SourcecommercialOpen SourceOpen SourceOpen Source infoBSD licenseOpen Source infoApache Version 2.0 + Common Clause 1.0
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageCC++
Server operating systemsBS2000
Linux
Unix
Windows
z/OS
z/VSE
Linux
Windows
Linux
macOS
Windows
FreeBSD
Linux
OS X
Unix
Windows
Linux
Data schemeyesschema-freeschema-freeStrong typed schema
Typing infopredefined data types such as float or dateyesnonoyes
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 indexesyesnonoyes infoNebula Graph internally uses the Key-Value store RocksDB for persistency. The vertices, edges, and their properties are stored as Key while their values are stored as Value. The primary indexes are per Key and secondary indexes are per Value.
SQL infoSupport of SQLyes infowith add-on product Adabas SQL GatewaynonoSQL-like query language
APIs and other access methodsHTTP API infowith add-on software Adabas SOA Gateway
SOAP-based API infowith add-on software Adabas SOA Gateway
Proprietary protocolBrowser interface
console (shell)
Cypher Query Language
GO Object Graph Mapper
Java Object Graph Mapper
NGBatis infoORM framework for NebulaGraph and Spring-Boot
Proprietary native API
Python Object Graph Mapper
Query language nGQL
Supported programming languagesNaturalJavaScript.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
.Net
C++
Go
Java
PHP
Python
Server-side scripts infoStored proceduresin Naturalfunctions in JavaScriptnouser defined functions
Triggersnonono
Partitioning methods infoMethods for storing different data on different nodesyes, with additonal products like Adabas Cluster Services, Adabas Parallel Services, Adabas VistanonenoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyes, with add-on product Event Replicatornonenone infoRepcached, a Memcached patch, provides this functionallityCausal Clustering using Raft protocol
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynononoyes infoRelationships in graphs
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnoACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyes infousing RocksDBnoyes infousing RocksDB
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes
User concepts infoAccess controlonly with OS-specific tools (e.g. IBM RACF, CA Top Secret)yes infousing SASL (Simple Authentication and Security Layer) protocolRole-based access control
More information provided by the system vendor
Adabas infodenotes "adaptable data base"EventStoreDBJSqlDbMemcachedNebulaGraph
Specific characteristicsNebulaGraph is a truly distributed, linearly scalable, lightning-fast graph database,...
» more
Competitive advantagesNebulaGraph boasts the world's only graph database solution that is able to host...
» more
Typical application scenariosSocial networking Fraud detection Knowledge graph Data warehouse management Anti...
» more
Key customersCompanies from a variety of industries have implemented NebulaGraph Database in production,...
» more
Market metricsAt our very early stage, NebulaGraph has already received over 10,000 stars on GitHub...
» more
Licensing and pricing modelsNebulaGraph is open source and free to use under Apache 2.0 license.
» more

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Adabas infodenotes "adaptable data base"EventStoreDBJSqlDbMemcachedNebulaGraph
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