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DBMS > CouchDB vs. Memcached vs. SAP HANA

System Properties Comparison CouchDB vs. Memcached vs. SAP HANA

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Editorial information provided by DB-Engines
NameCouchDB infostands for "Cluster Of Unreliable Commodity Hardware"  Xexclude from comparisonMemcached  Xexclude from comparisonSAP HANA  Xexclude from comparison
DescriptionA native JSON - document store inspired by Lotus Notes, scalable from globally distributed server-clusters down to mobile phones.In-memory key-value store, originally intended for cachingIn-memory, column based data store. Available as appliance or cloud service
Primary database modelDocument storeKey-value storeRelational DBMS
Secondary database modelsSpatial DBMS infousing the Geocouch extensionDocument store
Graph DBMS infowith SAP Hana, Enterprise Edition
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score16.80
Rank#40  Overall
#6  Document stores
Score26.37
Rank#31  Overall
#4  Key-value stores
Score55.53
Rank#20  Overall
#13  Relational DBMS
Websitecouchdb.apache.orgwww.memcached.orgwww.sap.com/­products/­hana.html
Technical documentationdocs.couchdb.org/­en/­stablegithub.com/­memcached/­memcached/­wikihelp.sap.com/­hana
DeveloperApache Software Foundation infoApache top-level project, originally developed by Damien Katz, a former Lotus Notes developerDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournalSAP
Initial release200520032010
Current release3.2.0, October 20211.6.9, November 20202.0 SPS05 (June 26, 2020), June 2020
License infoCommercial or Open SourceOpen Source infoApache version 2Open Source infoBSD licensecommercial
Cloud-based only infoOnly available as a cloud servicenonono infoalso available as a cloud based service
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageErlangC
Server operating systemsAndroid
BSD
Linux
OS X
Solaris
Windows
FreeBSD
Linux
OS X
Unix
Windows
Appliance or cloud-service
Data schemeschema-freeschema-freeyes
Typing infopredefined data types such as float or datenonoyes
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.nono
Secondary indexesyes infovia viewsnoyes
SQL infoSupport of SQLnonoyes
APIs and other access methodsRESTful HTTP/JSON APIProprietary protocolJDBC
ODBC
Supported programming languagesC
C#
ColdFusion
Erlang
Haskell
Java
JavaScript
Lisp
Lua
Objective-C
OCaml
Perl
PHP
PL/SQL
Python
Ruby
Smalltalk
.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
Server-side scripts infoStored proceduresView functions in JavaScriptnoSQLScript, R
Triggersyesnoyes
Partitioning methods infoMethods for storing different data on different nodesSharding infoimproved architecture with release 2.0noneyes
Replication methods infoMethods for redundantly storing data on multiple nodesMulti-source replication
Source-replica replication
none infoRepcached, a Memcached patch, provides this functionallityyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesnono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datano infoatomic operations within a single document possiblenoACID
Concurrency infoSupport for concurrent manipulation of datayes infostrategy: optimistic lockingyesyes
Durability infoSupport for making data persistentyesnoyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes
User concepts infoAccess controlAccess rights for users can be defined per databaseyes infousing SASL (Simple Authentication and Security Layer) protocolyes

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More resources
CouchDB infostands for "Cluster Of Unreliable Commodity Hardware"MemcachedSAP HANA
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Recent citations in the news

Syncing Hyperledger Fabric StateDB (CouchDB) to Elasticsearch - Latest Digital Transformation Trends | Cloud News
4 November 2021, Wire19

How to Connect Your Flask App With CouchDB: A NoSQL Database
14 August 2021, MakeUseOf

Apache CouchDB 3.0 NoSQL Database: A Major Milestone -- ADTmag
27 February 2020, ADT Magazine

CouchDB 3.0 ends admin party era • DEVCLASS
27 February 2020, DevClass

Couchbase IPO brings NoSQL database to the stock market
22 July 2021, TechTarget

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Google Releases Memorystore for Memcached into General Availability
9 March 2021, InfoQ.com

​Memcached DDoS: The biggest, baddest denial of service attacker yet
1 March 2018, ZDNet

Google Cloud rolls out Memcached database caching – Blocks and Files
4 April 2020, Blocks and Files

What are memcached servers, and why are they being used to launch record-setting DDoS attacks?
6 March 2018, GeekWire

Google rolls out Memorystore for Memcached in beta
2 April 2020, ZDNet

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SIOS Protection Suite for Linux 9.6 Offers Faster Recovery of SAP HANA Database
17 November 2021, Database Trends and Applications

New SIOS Protection Suite for Linux Version 9.6.0 Enhances Data Integrity Protection in Microsoft Azure and Enables Up to Five Times Faster Recovery Time for SAP HANA Databases
3 November 2021, Yahoo Finance

SAP SE: Accelerating digital transformation through products and services
28 November 2021, Cyprus Mail

Sponsored post: Why SAP's move to a new learning experience is good news
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RISE with AWS? Adidas migrates SAP S/4 HANA to the fluffy white stuff, snubs SAP's lift-and-shift programme
23 November 2021, The Register

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