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DBMS > Drizzle vs. OpenMLDB vs. VelocityDB vs. Warp 10

System Properties Comparison Drizzle vs. OpenMLDB vs. VelocityDB vs. Warp 10

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Editorial information provided by DB-Engines
NameDrizzle  Xexclude from comparisonOpenMLDB  Xexclude from comparisonVelocityDB  Xexclude from comparisonWarp 10  Xexclude from comparison
Drizzle has published its last release in September 2012. The open-source project is discontinued and Drizzle is excluded from the DB-Engines ranking.
DescriptionMySQL fork with a pluggable micro-kernel and with an emphasis of performance over compatibility.An open-source machine learning database that provides a feature platform for training and inferenceA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)TimeSeries DBMS specialized on timestamped geo data based on LevelDB or HBase
Primary database modelRelational DBMSTime Series DBMSGraph DBMS
Object oriented DBMS
Time Series DBMS
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.02
Rank#367  Overall
#37  Time Series DBMS
Score0.05
Rank#358  Overall
#36  Graph DBMS
#16  Object oriented DBMS
Score0.07
Rank#349  Overall
#32  Time Series DBMS
Websiteopenmldb.aivelocitydb.comwww.warp10.io
Technical documentationopenmldb.ai/­docs/­zh/­mainvelocitydb.com/­UserGuidewww.warp10.io/­content/­02_Getting_started
DeveloperDrizzle project, originally started by Brian Aker4 Paradigm Inc.VelocityDB IncSenX
Initial release2008202020112015
Current release7.2.4, September 20122024-2 February 20247.x
License infoCommercial or Open SourceOpen Source infoGNU GPLOpen SourcecommercialOpen Source infoApache License 2.0
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC++C++, Java, ScalaC#Java
Server operating systemsFreeBSD
Linux
OS X
LinuxAny that supports .NETLinux
OS X
Windows
Data schemeyesFixed schemayesschema-free
Typing infopredefined data types such as float or dateyesyesyesyes
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 indexesyesyesyesno
SQL infoSupport of SQLyes infowith proprietary extensionsyesnono
APIs and other access methodsJDBCJDBC
SQLAlchemy
.NetHTTP API
Jupyter
WebSocket
Supported programming languagesC
C++
Java
PHP
C++
Go
Java
Python
Scala
.Net
Server-side scripts infoStored proceduresnononoyes infoWarpScript
Triggersno infohooks for callbacks inside the server can be used.noCallbacks are triggered when data changesno
Partitioning methods infoMethods for storing different data on different nodesShardinghorizontal partitioningShardingSharding infobased on HBase
Replication methods infoMethods for redundantly storing data on multiple nodesMulti-source replication
Source-replica replication
Source-replica replicationselectable replication factor infobased on HBase
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency infobased on HBase
Foreign keys infoReferential integrityyesnonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnoACIDno
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesyes
User concepts infoAccess controlPluggable authentication mechanisms infoe.g. LDAP, HTTPfine grained access rights according to SQL-standardBased on Windows AuthenticationMandatory use of cryptographic tokens, containing fine-grained authorizations

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More resources
DrizzleOpenMLDBVelocityDBWarp 10
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