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DBMS > Ehcache vs. Sequoiadb vs. SQream DB vs. VelocityDB

System Properties Comparison Ehcache vs. Sequoiadb vs. SQream DB vs. VelocityDB

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Editorial information provided by DB-Engines
NameEhcache  Xexclude from comparisonSequoiadb  Xexclude from comparisonSQream DB  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionA widely adopted Java cache with tiered storage optionsNewSQL database with distributed OLTP and SQLa GPU-based, columnar RDBMS for big data analytics workloadsA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelKey-value storeDocument store
Relational DBMS
Relational DBMSGraph DBMS
Object oriented DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score4.64
Rank#68  Overall
#8  Key-value stores
Score0.50
Rank#258  Overall
#41  Document stores
#120  Relational DBMS
Score0.74
Rank#224  Overall
#103  Relational DBMS
Score0.11
Rank#354  Overall
#37  Graph DBMS
#15  Object oriented DBMS
Websitewww.ehcache.orgwww.sequoiadb.comsqream.comvelocitydb.com
Technical documentationwww.ehcache.org/­documentationwww.sequoiadb.com/­en/­index.php?m=Files&a=indexdocs.sqream.comvelocitydb.com/­UserGuide
DeveloperTerracotta Inc, owned by Software AGSequoiadb Ltd.SQream TechnologiesVelocityDB Inc
Initial release2009201320172011
Current release3.10.0, March 20222022.1.6, December 20227.x
License infoCommercial or Open SourceOpen Source infoApache Version 2; commercial licenses availableOpen Source infoServer: AGPL; Client: Apache V2commercialcommercial
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaC++C++, CUDA, Haskell, Java, ScalaC#
Server operating systemsAll OS with a Java VMLinuxLinuxAny that supports .NET
Data schemeschema-freeschema-freeyesyes
Typing infopredefined data types such as float or dateyesyes infooid, date, timestamp, binary, regexyes, 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.nonono
Secondary indexesnoyesnoyes
SQL infoSupport of SQLnoSQL-like query languageyesno
APIs and other access methodsJCacheproprietary protocol using JSON.Net
JDBC
ODBC
.Net
Supported programming languagesJava.Net
C++
Java
PHP
Python
C++
Java
JavaScript (Node.js)
Python
.Net
Server-side scripts infoStored proceduresnoJavaScriptuser defined functions in Pythonno
Triggersyes infoCache Event ListenersnonoCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesSharding infoby using Terracotta ServerShardinghorizontal and vertical partitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyes infoby using Terracotta ServerSource-replica replicationnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemTunable Consistency (Strong, Eventual, Weak)Eventual ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynononono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayes infosupports JTA and can work as an XA resourceDocument is locked during a transactionACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyes infousing a tiered cache-storage approachyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnoyes
User concepts infoAccess controlnosimple password-based access controlBased on Windows Authentication

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More resources
EhcacheSequoiadbSQream DBVelocityDB
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