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Quasardb System Properties

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Editorial information provided by DB-Engines
NameQuasardb
DescriptionDistributed, high-performance Key-value Store
Primary database modelKey-value store
DB-Engines Ranking infomeasures the popularity of database management systems
Score0.00
Rank#309  Overall
#53  Key-value stores
Websitewww.quasardb.net
Technical documentationdoc.quasardb.net
Developerquasardb
Initial release2009
Current release2.0.0, 2017
License infoCommercial or Open Sourcecommercial
Cloud-based infoOnly available as a cloud serviceno
Implementation languageC++
Server operating systemsBSD
Linux
OS X
Windows
Data schemeschema-free
Typing infopredefined data types such as float or dateyes infointeger and binary
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.no
Secondary indexesyes infowith tags
SQL infoSupport of SQLno
APIs and other access methodsHTTP API
Supported programming languages.Net
C
C#
C++
Java
JavaScript (Node.js)
PHP
Python
Server-side scripts infoStored proceduresno
Triggersno
Partitioning methods infoMethods for storing different data on different nodesSharding infoconsistent hashing
Replication methods infoMethods for redundantly storing data on multiple nodesMaster-slave replication
MapReduce infoOffers an API for user-defined Map/Reduce methodswith Hadoop integration
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency
Foreign keys infoReferential integrityno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACID
Concurrency infoSupport for concurrent manipulation of datayes
Durability infoSupport for making data persistentyes infoby using LevelDB
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes infoTransient mode
User concepts infoAccess controlno

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Quasardb
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