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DBMS > OushuDB vs. RocksDB vs. VelocityDB

System Properties Comparison OushuDB vs. RocksDB vs. VelocityDB

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Editorial information provided by DB-Engines
NameOushuDB  Xexclude from comparisonRocksDB  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionA data warehouse powered by Apache HAWQ supporting descriptive analysis and advanced machine learningEmbeddable persistent key-value store optimized for fast storage (flash and RAM)A .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelRelational DBMSKey-value storeGraph DBMS
Object oriented DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.05
Rank#357  Overall
#151  Relational DBMS
Score2.84
Rank#97  Overall
#16  Key-value stores
Score0.00
Rank#385  Overall
#40  Graph DBMS
#21  Object oriented DBMS
Websitewww.oushu.com/­product/­oushuDBrocksdb.orgvelocitydb.com
Technical documentationwww.oushu.com/­documentationgithub.com/­facebook/­rocksdb/­wikivelocitydb.com/­UserGuide
DeveloperOushuFacebook, Inc.VelocityDB Inc
Initial release20132011
Current release4.0.1, August 20209.4.0, June 20247.x
License infoCommercial or Open SourcecommercialOpen Source infoBSDcommercial
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC++C#
Server operating systemsLinuxLinuxAny that supports .NET
Data schemeyesschema-freeyes
Typing infopredefined data types such as float or dateyesnoyes
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.nono
Secondary indexesyesnoyes
SQL infoSupport of SQLFull-featured ANSI SQL supportnono
APIs and other access methodsJDBC
ODBC
C++ API
Java API
.Net
Supported programming languagesC
C++
C
C++
Go
Java
Perl
Python
Ruby
.Net
Server-side scripts infoStored proceduresyesnono
TriggersyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesyeshorizontal partitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsHadoop integrationnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency
Foreign keys infoReferential integritynono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDyesACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes
User concepts infoAccess controlKerberos, SSL and role based accessnoBased on Windows Authentication

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More resources
OushuDBRocksDBVelocityDB
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