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DBMS > Immudb vs. Memcached vs. OpenMLDB vs. Snowflake vs. SQream DB

System Properties Comparison Immudb vs. Memcached vs. OpenMLDB vs. Snowflake vs. SQream DB

Editorial information provided by DB-Engines
NameImmudb  Xexclude from comparisonMemcached  Xexclude from comparisonOpenMLDB  Xexclude from comparisonSnowflake  Xexclude from comparisonSQream DB  Xexclude from comparison
DescriptionAn open source immutable (append-only) database with cryptographic verification which makes it tamper-resistant and fully auditable.In-memory key-value store, originally intended for cachingAn open-source machine learning database that provides a feature platform for training and inferenceCloud-based data warehousing service for structured and semi-structured dataa GPU-based, columnar RDBMS for big data analytics workloads
Primary database modelKey-value storeKey-value storeTime Series DBMSRelational DBMSRelational DBMS
Secondary database modelsRelational DBMSRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.24
Rank#295  Overall
#42  Key-value stores
Score16.84
Rank#32  Overall
#4  Key-value stores
Score0.11
Rank#339  Overall
#30  Time Series DBMS
Score133.72
Rank#7  Overall
#5  Relational DBMS
Score0.62
Rank#234  Overall
#109  Relational DBMS
Websitegithub.com/­codenotary/­immudb
immudb.io
www.memcached.orgopenmldb.aiwww.snowflake.comsqream.com
Technical documentationdocs.immudb.iogithub.com/­memcached/­memcached/­wikiopenmldb.ai/­docs/­zh/­maindocs.snowflake.net/­manuals/­index.htmldocs.sqream.com
DeveloperCodenotaryDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournal4 Paradigm Inc.Snowflake Computing Inc.SQream Technologies
Initial release20202003202020142017
Current release1.2.3, April 20221.6.29, June 20242024-2 February 20242022.1.6, December 2022
License infoCommercial or Open SourceOpen Source infoApache Version 2.0Open Source infoBSD licenseOpen Sourcecommercialcommercial
Cloud-based only infoOnly available as a cloud servicenononoyesno
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageGoCC++, Java, ScalaC++, CUDA, Haskell, Java, Scala
Server operating systemsBSD
Linux
macOS
Solaris
Windows
z/OS
FreeBSD
Linux
OS X
Unix
Windows
LinuxhostedLinux
Data schemeschema-freeschema-freeFixed schemayes infosupport of semi-structured data formats (JSON, XML, Avro)yes
Typing infopredefined data types such as float or datenoyesyesyes, ANSI Standard SQL Types
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.nonoyes
Secondary indexesyesnoyesno
SQL infoSupport of SQLSQL-like syntaxnoyesyesyes
APIs and other access methodsgRPC protocol
PostgreSQL wire protocol
Proprietary protocolJDBC
SQLAlchemy
CLI Client
JDBC
ODBC
.Net
JDBC
ODBC
Supported programming languages.Net
Go
Java
JavaScript (Node.js)
Python
.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
C++
Go
Java
Python
Scala
JavaScript (Node.js)
Python
C++
Java
JavaScript (Node.js)
Python
Server-side scripts infoStored proceduresnononouser defined functionsuser defined functions in Python
Triggersnononono infosimilar concept for controling cloud resourcesno
Partitioning methods infoMethods for storing different data on different nodesShardingnonehorizontal partitioningyeshorizontal and vertical partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesnone infoRepcached, a Memcached patch, provides this functionallitySource-replica replicationyesnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynononoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnonoACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes
Durability infoSupport for making data persistentyesnoyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesno
User concepts infoAccess controlyes infousing SASL (Simple Authentication and Security Layer) protocolfine grained access rights according to SQL-standardUsers with fine-grained authorization concept, user roles and pluggable authentication

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More resources
ImmudbMemcachedOpenMLDBSnowflakeSQream DB
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