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DBMS > Memcached vs. openGemini vs. Snowflake vs. SQream DB vs. Vitess

System Properties Comparison Memcached vs. openGemini vs. Snowflake vs. SQream DB vs. Vitess

Editorial information provided by DB-Engines
NameMemcached  Xexclude from comparisonopenGemini  Xexclude from comparisonSnowflake  Xexclude from comparisonSQream DB  Xexclude from comparisonVitess  Xexclude from comparison
DescriptionIn-memory key-value store, originally intended for cachingAn open source distributed Time Series DBMS with high concurrency, high performance, and high scalabilityCloud-based data warehousing service for structured and semi-structured dataa GPU-based, columnar RDBMS for big data analytics workloadsScalable, distributed, cloud-native DBMS, extending MySQL
Primary database modelKey-value storeTime Series DBMSRelational DBMSRelational DBMSRelational DBMS
Secondary database modelsDocument store
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score18.08
Rank#32  Overall
#4  Key-value stores
Score0.09
Rank#361  Overall
#37  Time Series DBMS
Score130.36
Rank#8  Overall
#5  Relational DBMS
Score0.74
Rank#224  Overall
#103  Relational DBMS
Score0.88
Rank#203  Overall
#95  Relational DBMS
Websitewww.memcached.orgwww.opengemini.org
github.com/­openGemini
www.snowflake.comsqream.comvitess.io
Technical documentationgithub.com/­memcached/­memcached/­wikidocs.opengemini.org/­guidedocs.snowflake.net/­manuals/­index.htmldocs.sqream.comvitess.io/­docs
DeveloperDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournalHuawei and openGemini communitySnowflake Computing Inc.SQream TechnologiesThe Linux Foundation, PlanetScale
Initial release20032022201420172013
Current release1.6.27, May 20241.1, July 20232022.1.6, December 202215.0.2, December 2022
License infoCommercial or Open SourceOpen Source infoBSD licenseOpen Source infoApache Version 2.0commercialcommercialOpen Source infoApache Version 2.0, commercial licenses available
Cloud-based only infoOnly available as a cloud servicenonoyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageCGoC++, CUDA, Haskell, Java, ScalaGo
Server operating systemsFreeBSD
Linux
OS X
Unix
Windows
Linux
Windows
hostedLinuxDocker
Linux
macOS
Data schemeschema-freeschema-freeyes infosupport of semi-structured data formats (JSON, XML, Avro)yesyes
Typing infopredefined data types such as float or datenoInteger, Float, Boolean, Stringyesyes, ANSI Standard SQL Typesyes
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.noyes
Secondary indexesnoyesnoyes
SQL infoSupport of SQLnoSQL-like query languageyesyesyes infowith proprietary extensions
APIs and other access methodsProprietary protocolHTTP RESTCLI Client
JDBC
ODBC
.Net
JDBC
ODBC
ADO.NET
JDBC
MySQL protocol
ODBC
Supported programming languages.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
C
C++
Go
Java
JavaScript (Node.js)
Python
Rust
JavaScript (Node.js)
Python
C++
Java
JavaScript (Node.js)
Python
Ada
C
C#
C++
D
Delphi
Eiffel
Erlang
Haskell
Java
JavaScript (Node.js)
Objective-C
OCaml
Perl
PHP
Python
Ruby
Scheme
Tcl
Server-side scripts infoStored proceduresnonouser defined functionsuser defined functions in Pythonyes infoproprietary syntax
Triggersnonono infosimilar concept for controling cloud resourcesnoyes
Partitioning methods infoMethods for storing different data on different nodesnoneShardingyeshorizontal and vertical partitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnone infoRepcached, a Memcached patch, provides this functionallityyesyesnoneMulti-source replication
Source-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyEventual Consistency across shards
Immediate Consistency within a shard
Foreign keys infoReferential integritynonoyesnoyes infonot for MyISAM storage engine
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonoACIDACIDACID at shard level
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes infotable locks or row locks depending on storage engine
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.yesnoyes
User concepts infoAccess controlyes infousing SASL (Simple Authentication and Security Layer) protocolAdministrators and common users accountsUsers with fine-grained authorization concept, user roles and pluggable authenticationUsers with fine-grained authorization concept infono user groups or roles

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More resources
MemcachedopenGeminiSnowflakeSQream DBVitess
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