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DBMS > AgensGraph vs. Blueflood vs. LevelDB vs. Microsoft Azure Cosmos DB vs. Valentina Server

System Properties Comparison AgensGraph vs. Blueflood vs. LevelDB vs. Microsoft Azure Cosmos DB vs. Valentina Server

Editorial information provided by DB-Engines
NameAgensGraph  Xexclude from comparisonBlueflood  Xexclude from comparisonLevelDB  Xexclude from comparisonMicrosoft Azure Cosmos DB infoformer name was Azure DocumentDB  Xexclude from comparisonValentina Server  Xexclude from comparison
DescriptionMulti-model database supporting relational and graph data models and built upon PostgreSQLScalable TimeSeries DBMS based on CassandraEmbeddable fast key-value storage library that provides an ordered mapping from string keys to string valuesGlobally distributed, horizontally scalable, multi-model database serviceObject-relational database and reports server
Primary database modelGraph DBMS
Relational DBMS
Time Series DBMSKey-value storeDocument store
Graph DBMS
Key-value store
Wide column store
Relational DBMS
Secondary database modelsSpatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.08
Rank#312  Overall
#30  Graph DBMS
#140  Relational DBMS
Score0.05
Rank#320  Overall
#29  Time Series DBMS
Score3.08
Rank#98  Overall
#16  Key-value stores
Score40.04
Rank#26  Overall
#3  Document stores
#2  Graph DBMS
#3  Key-value stores
#3  Wide column stores
Score0.24
Rank#278  Overall
#129  Relational DBMS
Websitebitnine.netblueflood.iogithub.com/­google/­leveldbazure.microsoft.com/­services/­cosmos-dbwww.valentina-db.net
Technical documentationbitnine.net/­documentationgithub.com/­rackerlabs/­blueflood/­wikigithub.com/­google/­leveldb/­blob/­master/­doc/­index.mddocs.microsoft.com/­azure/­cosmos-dbvalentina-db.com/­docs/­dokuwiki/­v5/­doku.php
DeveloperBitnine Global Inc.RackspaceGoogleMicrosoftParadigma Software
Initial release20162013201120141999
Current release2.1, December 20181.23, February 20215.7.5
License infoCommercial or Open SourceOpen Source infoApache License 2.0Open Source infoApache 2.0Open Source infoBSDcommercialcommercial
Cloud-based only infoOnly available as a cloud servicenononoyesno
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageCJavaC++
Server operating systemsLinux
OS X
Windows
Linux
OS X
Illumos
Linux
OS X
Windows
hostedLinux
OS X
Windows
Data schemedepending on used data modelpredefined schemeschema-freeschema-freeyes
Typing infopredefined data types such as float or dateyesyesnoyes infoJSON 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 indexesyesnonoyes infoAll properties auto-indexed by defaultyes
SQL infoSupport of SQLyesnonoSQL-like query languageyes
APIs and other access methodsCypher Query Language
JDBC
HTTP RESTDocumentDB API
Graph API (Gremlin)
MongoDB API
RESTful HTTP API
Table API
ODBC
Supported programming languagesC
Java
JavaScript
Python
C++
Go
Java info3rd party binding
JavaScript (Node.js) info3rd party binding
Python info3rd party binding
.Net
C#
Java
JavaScript
JavaScript (Node.js)
MongoDB client drivers written for various programming languages
Python
.Net
C
C#
C++
Objective-C
PHP
Ruby
Visual Basic
Visual Basic.NET
Server-side scripts infoStored proceduresyesnonoJavaScriptyes
TriggersnononoJavaScriptyes
Partitioning methods infoMethods for storing different data on different nodesno, but can be realized using table inheritanceSharding infobased on CassandranoneSharding infoImplicit feature of the cloud service
Replication methods infoMethods for redundantly storing data on multiple nodesSource-replica replicationselectable replication factor infobased on Cassandranoneyes infoImplicit feature of the cloud service
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononowith Hadoop integration infoIntegration with Hadoop/HDInsight on Azure*no
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual Consistency infobased on Cassandra
Immediate Consistency infobased on Cassandra
Immediate ConsistencyBounded Staleness
Consistent Prefix
Eventual Consistency
Immediate Consistency infoConsistency level configurable on request level
Session Consistency
Foreign keys infoReferential integrityyesnononoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnonoMulti-item ACID transactions with snapshot isolation within a partition
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesyes infowith automatic compression on writesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nonoyes
User concepts infoAccess controlfine grained access rights according to SQL-standardnonoAccess rights can be defined down to the item levelfine grained access rights according to SQL-standard

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More resources
AgensGraphBluefloodLevelDBMicrosoft Azure Cosmos DB infoformer name was Azure DocumentDBValentina Server
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