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DBMS > ArcadeDB vs. Memcached vs. SAP HANA vs. VelocityDB

System Properties Comparison ArcadeDB vs. Memcached vs. SAP HANA vs. VelocityDB

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Editorial information provided by DB-Engines
NameArcadeDB  Xexclude from comparisonMemcached  Xexclude from comparisonSAP HANA  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionFast and scalable multi-model DBMS, originally forked from OrientDB but most of the code has been rewrittenIn-memory key-value store, originally intended for cachingIn-memory, column based data store. Available as appliance or cloud serviceA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelDocument store
Graph DBMS
Key-value store
Time Series DBMS infoin next version
Key-value storeRelational DBMSGraph DBMS
Object oriented DBMS
Secondary database modelsDocument store
Graph DBMS infowith SAP Hana, Enterprise Edition
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.02
Rank#366  Overall
#50  Document stores
#38  Graph DBMS
#53  Key-value stores
#36  Time Series DBMS
Score19.42
Rank#32  Overall
#4  Key-value stores
Score44.69
Rank#22  Overall
#16  Relational DBMS
Score0.05
Rank#358  Overall
#36  Graph DBMS
#16  Object oriented DBMS
Websitearcadedb.comwww.memcached.orgwww.sap.com/­products/­hana.htmlvelocitydb.com
Technical documentationdocs.arcadedb.comgithub.com/­memcached/­memcached/­wikihelp.sap.com/­hanavelocitydb.com/­UserGuide
DeveloperArcade DataDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournalSAPVelocityDB Inc
Initial release2021200320102011
Current releaseSeptember 20211.6.25, March 20242.0 SPS07 (AprilĀ 4, 2023), April 20237.x
License infoCommercial or Open SourceOpen Source infoApache Version 2.0Open Source infoBSD licensecommercialcommercial
Cloud-based only infoOnly available as a cloud servicenonono infoalso available as a cloud based serviceno
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaCC#
Server operating systemsAll OS with a Java VMFreeBSD
Linux
OS X
Unix
Windows
Appliance or cloud-serviceAny that supports .NET
Data schemeschema-freeschema-freeyesyes
Typing infopredefined data types such as float or dateyesnoyesyes
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 indexesyesnoyesyes
SQL infoSupport of SQLSQL-like query language, no joinsnoyesno
APIs and other access methodsJDBC
MongoDB API
OpenCypher
PostgreSQL wire protocol
Redis API
RESTful HTTP/JSON API
TinkerPop Gremlin
Proprietary protocolJDBC
ODBC
.Net
Supported programming languagesJava.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
.Net
Server-side scripts infoStored proceduresnoSQLScript, Rno
TriggersnoyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesnoneyesSharding
Replication methods infoMethods for redundantly storing data on multiple nodesSource-replica replicationnone infoRepcached, a Memcached patch, provides this functionallityyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyes inforelationship in graphsnoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnoACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesnoyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes
User concepts infoAccess controlyes infousing SASL (Simple Authentication and Security Layer) protocolyesBased on Windows Authentication

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More resources
ArcadeDBMemcachedSAP HANAVelocityDB
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