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DBMS > Memcached vs. RisingWave vs. Snowflake vs. SQream DB vs. Tkrzw

System Properties Comparison Memcached vs. RisingWave vs. Snowflake vs. SQream DB vs. Tkrzw

Editorial information provided by DB-Engines
NameMemcached  Xexclude from comparisonRisingWave  Xexclude from comparisonSnowflake  Xexclude from comparisonSQream DB  Xexclude from comparisonTkrzw infoSuccessor of Tokyo Cabinet and Kyoto Cabinet  Xexclude from comparison
DescriptionIn-memory key-value store, originally intended for cachingA distributed RDBMS for stream processing, wire-compatible with PostgreSQLCloud-based data warehousing service for structured and semi-structured dataa GPU-based, columnar RDBMS for big data analytics workloadsA concept of libraries, allowing an application program to store and query key-value pairs in a file. Successor of Tokyo Cabinet and Kyoto Cabinet
Primary database modelKey-value storeRelational DBMSRelational DBMSRelational DBMSKey-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score18.08
Rank#32  Overall
#4  Key-value stores
Score0.64
Rank#238  Overall
#110  Relational DBMS
Score130.36
Rank#8  Overall
#5  Relational DBMS
Score0.74
Rank#224  Overall
#103  Relational DBMS
Score0.07
Rank#372  Overall
#57  Key-value stores
Websitewww.memcached.orgwww.risingwave.com/­databasewww.snowflake.comsqream.comdbmx.net/­tkrzw
Technical documentationgithub.com/­memcached/­memcached/­wikidocs.risingwave.com/­docs/­current/­introdocs.snowflake.net/­manuals/­index.htmldocs.sqream.com
DeveloperDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournalRisingWave LabsSnowflake Computing Inc.SQream TechnologiesMikio Hirabayashi
Initial release20032022201420172020
Current release1.6.27, May 20241.2, September 20232022.1.6, December 20220.9.3, August 2020
License infoCommercial or Open SourceOpen Source infoBSD licenseOpen Source infoApache Version 2.0commercialcommercialOpen Source infoApache Version 2.0
Cloud-based only infoOnly available as a cloud servicenonoyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageCRustC++, CUDA, Haskell, Java, ScalaC++
Server operating systemsFreeBSD
Linux
OS X
Unix
Windows
Docker
Linux
macOS
hostedLinuxLinux
macOS
Data schemeschema-freeyesyes infosupport of semi-structured data formats (JSON, XML, Avro)yesschema-free
Typing infopredefined data types such as float or datenoStandard SQL-types and JSONyesyes, ANSI Standard SQL Typesno
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.noyesno
Secondary indexesnoyesno
SQL infoSupport of SQLnoyesyesyesno
APIs and other access methodsProprietary protocolJDBC
PostgreSQL wire protocol
CLI Client
JDBC
ODBC
.Net
JDBC
ODBC
Supported programming languages.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
Go
Java
JavaScript (Node.js)
Python
JavaScript (Node.js)
Python
C++
Java
JavaScript (Node.js)
Python
C++
Java
Python
Ruby
Server-side scripts infoStored proceduresnoUDFs in Python or Javauser defined functionsuser defined functions in Pythonno
Triggersnonono infosimilar concept for controling cloud resourcesnono
Partitioning methods infoMethods for storing different data on different nodesnoneyeshorizontal and vertical partitioningnone
Replication methods infoMethods for redundantly storing data on multiple nodesnone infoRepcached, a Memcached patch, provides this functionallityyesnonenone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonoyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonoACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
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 infousing specific database classes
User concepts infoAccess controlyes infousing SASL (Simple Authentication and Security Layer) protocolUsers and RolesUsers with fine-grained authorization concept, user roles and pluggable authenticationno

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More resources
MemcachedRisingWaveSnowflakeSQream DBTkrzw infoSuccessor of Tokyo Cabinet and Kyoto Cabinet
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