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DBMS > Tkrzw vs. VelocityDB vs. Yaacomo

System Properties Comparison Tkrzw vs. VelocityDB vs. Yaacomo

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Editorial information provided by DB-Engines
NameTkrzw infoSuccessor of Tokyo Cabinet and Kyoto Cabinet  Xexclude from comparisonVelocityDB  Xexclude from comparisonYaacomo  Xexclude from comparison
DescriptionA concept of libraries, allowing an application program to store and query key-value pairs in a file. Successor of Tokyo Cabinet and Kyoto CabinetA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)OpenCL based in-memory RDBMS, designed for efficiently utilizing the hardware via parallel computing
Primary database modelKey-value storeGraph DBMS
Object oriented DBMS
Relational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.00
Rank#389  Overall
#63  Key-value stores
Score0.19
Rank#356  Overall
#35  Graph DBMS
#20  Object oriented DBMS
Score0.00
Rank#389  Overall
#162  Relational DBMS
Websitedbmx.net/­tkrzwvelocitydb.comyaacomo.com
Technical documentationvelocitydb.com/­UserGuide
DeveloperMikio HirabayashiVelocityDB IncQ2WEB GmbH
Initial release202020112009
Current release0.9.3, August 20207.x
License infoCommercial or Open SourceOpen Source infoApache Version 2.0commercialcommercial
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 systemsLinux
macOS
Any that supports .NETAndroid
Linux
Windows
Data schemeschema-freeyesyes
Typing infopredefined data types such as float or datenoyesyes
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 indexesyesyes
SQL infoSupport of SQLnonoyes
APIs and other access methods.NetJDBC
ODBC
Supported programming languagesC++
Java
Python
Ruby
.Net
Server-side scripts infoStored proceduresnono
TriggersnoCallbacks are triggered when data changesyes
Partitioning methods infoMethods for storing different data on different nodesnoneShardinghorizontal partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesnoneSource-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACID
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.yes infousing specific database classesyesyes
User concepts infoAccess controlnoBased on Windows Authenticationfine grained access rights according to SQL-standard

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Tkrzw infoSuccessor of Tokyo Cabinet and Kyoto CabinetVelocityDBYaacomo
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