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DBMS > Memcached vs. Netezza vs. openGauss vs. openGemini vs. ToroDB

System Properties Comparison Memcached vs. Netezza vs. openGauss vs. openGemini vs. ToroDB

Editorial information provided by DB-Engines
NameMemcached  Xexclude from comparisonNetezza infoAlso called PureData System for Analytics by IBM  Xexclude from comparisonopenGauss  Xexclude from comparisonopenGemini  Xexclude from comparisonToroDB  Xexclude from comparison
ToroDB seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.
DescriptionIn-memory key-value store, originally intended for cachingData warehouse and analytics appliance part of IBM PureSystemsAn enterprise-class RDBMS compatible with high-performance, high-availability and high-performance originally developed by HuaweiAn open source distributed Time Series DBMS with high concurrency, high performance, and high scalabilityA MongoDB-compatible JSON document store, built on top of PostgreSQL
Primary database modelKey-value storeRelational DBMSRelational DBMSTime Series DBMSDocument store
Secondary database modelsDocument store
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score16.84
Rank#32  Overall
#4  Key-value stores
Score7.56
Rank#48  Overall
#31  Relational DBMS
Score1.11
Rank#175  Overall
#79  Relational DBMS
Score0.00
Rank#385  Overall
#40  Time Series DBMS
Websitewww.memcached.orgwww.ibm.com/­products/­netezzagitee.com/­opengauss
opengauss.org
www.opengemini.org
github.com/­openGemini
github.com/­torodb/­server
Technical documentationgithub.com/­memcached/­memcached/­wikidocs.opengauss.org/­en
gitee.com/­opengauss/­docs
docs.opengemini.org/­guide
DeveloperDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournalIBMHuawei and openGauss communityHuawei and openGemini community8Kdata
Initial release20032000201920222016
Current release1.6.29, June 20243.0, March 20221.1, July 2023
License infoCommercial or Open SourceOpen Source infoBSD licensecommercialOpen SourceOpen Source infoApache Version 2.0Open Source infoAGPL-V3
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageCC, C++, JavaGoJava
Server operating systemsFreeBSD
Linux
OS X
Unix
Windows
Linux infoincluded in applianceLinuxLinux
Windows
All OS with a Java 7 VM
Data schemeschema-freeyesyesschema-freeschema-free
Typing infopredefined data types such as float or datenoyesyesInteger, Float, Boolean, Stringyes infostring, integer, double, boolean, date, object_id
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 indexesnoyesyesyes
SQL infoSupport of SQLnoyesANSI SQL 2011SQL-like query language
APIs and other access methodsProprietary protocolJDBC
ODBC
OLE DB
JDBC
ODBC
HTTP REST
Supported programming languages.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
C
C++
Fortran
Java
Lua
Perl
Python
R
C
C++
Java
C
C++
Go
Java
JavaScript (Node.js)
Python
Rust
Server-side scripts infoStored proceduresnoyesyesno
Triggersnonoyesnono
Partitioning methods infoMethods for storing different data on different nodesnoneShardinghorizontal partitioning (by range, list and hash)ShardingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnone infoRepcached, a Memcached patch, provides this functionallitySource-replica replicationSource-replica replicationyesSource-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual Consistency
Immediate Consistency
Foreign keys infoReferential integritynonoyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDACIDnono
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes
Durability infoSupport for making data persistentnoyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes
User concepts infoAccess controlyes infousing SASL (Simple Authentication and Security Layer) protocolUsers with fine-grained authorization conceptAccess rights for users, groups and roles according to SQL-standardAdministrators and common users accountsAccess rights for users and roles

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More resources
MemcachedNetezza infoAlso called PureData System for Analytics by IBMopenGaussopenGeminiToroDB
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