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DBMS > Blueflood vs. openGauss vs. Rockset vs. SingleStore vs. VelocityDB

System Properties Comparison Blueflood vs. openGauss vs. Rockset vs. SingleStore vs. VelocityDB

Editorial information provided by DB-Engines
NameBlueflood  Xexclude from comparisonopenGauss  Xexclude from comparisonRockset  Xexclude from comparisonSingleStore infoformer name was MemSQL  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionScalable TimeSeries DBMS based on CassandraAn enterprise-class RDBMS compatible with high-performance, high-availability and high-performance originally developed by HuaweiA scalable, reliable search and analytics service in the cloud, built on RocksDBMySQL wire-compliant distributed RDBMS that combines an in-memory row-oriented and a disc-based column-oriented storage with patented universal storage to handle transactional and analytical workloads in one single table typeA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelTime Series DBMSRelational DBMSDocument storeRelational DBMSGraph DBMS
Object oriented DBMS
Secondary database modelsDocument store
Spatial DBMS
Relational DBMS
Search engine
Document store
Spatial DBMS
Time Series DBMS
Vector DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.06
Rank#353  Overall
#34  Time Series DBMS
Score1.08
Rank#183  Overall
#84  Relational DBMS
Score0.79
Rank#211  Overall
#35  Document stores
Score5.60
Rank#62  Overall
#35  Relational DBMS
Score0.05
Rank#358  Overall
#36  Graph DBMS
#16  Object oriented DBMS
Websiteblueflood.iogitee.com/­opengauss
opengauss.org
rockset.comwww.singlestore.comvelocitydb.com
Technical documentationgithub.com/­rax-maas/­blueflood/­wikidocs.opengauss.org/­en
gitee.com/­opengauss/­docs
docs.rockset.comdocs.singlestore.comvelocitydb.com/­UserGuide
DeveloperRackspaceHuawei and openGauss communityRocksetSingleStore Inc.VelocityDB Inc
Initial release20132019201920132011
Current release3.0, March 20228.5, January 20247.x
License infoCommercial or Open SourceOpen Source infoApache 2.0Open Sourcecommercialcommercial infofree developer edition availablecommercial
Cloud-based only infoOnly available as a cloud servicenonoyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
SingleStoreDB Cloud: The world's fastest, modern cloud database for both operational (OLTP) and analytical (OLAP) workloads. Available instantly with multi-cloud and hybrid-cloud capabilities
Implementation languageJavaC, C++, JavaC++C++, GoC#
Server operating systemsLinux
OS X
LinuxhostedLinux info64 bit version requiredAny that supports .NET
Data schemepredefined schemeyesschema-freeyesyes
Typing infopredefined data types such as float or dateyesyesdynamic typingyesyes
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 infoingestion from XML files supportednono
Secondary indexesnoyesall fields are automatically indexedyesyes
SQL infoSupport of SQLnoANSI SQL 2011Read-only SQL queries, including JOINsyes infobut no triggers and foreign keysno
APIs and other access methodsHTTP RESTJDBC
ODBC
HTTP RESTCluster Management API infoas HTTP Rest and CLI
HTTP API
JDBC
MongoDB API
ODBC
.Net
Supported programming languagesC
C++
Java
Go
Java
JavaScript (Node.js)
Python
Bash
C
C#
Java
JavaScript (Node.js)
Python
.Net
Server-side scripts infoStored proceduresnoyesnoyesno
TriggersnoyesnonoCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesSharding infobased on Cassandrahorizontal partitioning (by range, list and hash)Automatic shardingSharding infohash partitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor infobased on CassandraSource-replica replicationyesSource-replica replication infostores two copies of each physical data partition on two separate nodes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono infocan define user-defined aggregate functions for map-reduce-style calculationsno
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency infobased on Cassandra
Immediate Consistency infobased on Cassandra
Immediate ConsistencyEventual ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyesnonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDnoACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes, multi-version concurrency control (MVCC)yes
Durability infoSupport for making data persistentyesyesyesyes infoAll updates are persistent, including those to disk-based columnstores and memory-based row stores. Transaction commits are supported via write-ahead log.yes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nonoyesyes
User concepts infoAccess controlnoAccess rights for users, groups and roles according to SQL-standardAccess rights for users and organizations can be defined via Rockset consoleFine grained access control via users, groups and rolesBased on Windows Authentication
More information provided by the system vendor
BluefloodopenGaussRocksetSingleStore infoformer name was MemSQLVelocityDB
Specific characteristicsSingleStore offers a fully-managed , distributed, highly-scalable SQL database designed...
» more
Competitive advantagesSingleStore’s competitive advantages include: Easy and Simplified Architecture with...
» more
Typical application scenariosDriving Fast Analytics: SingleStore delivers the fastest and most scalable reporting...
» more
Key customersIEX Cloud : Improves Financial Data Distribution Speed 15x with Singlestore DB Comcast,...
» more
Market metricsCustomers in various industries worldwide including US and International Industry...
» more
Licensing and pricing modelsF ree Tier and Enterprise Edition
» more

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and for displaying vendor-provided information such as key customers, competitive advantages and market metrics.

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More resources
BluefloodopenGaussRocksetSingleStore infoformer name was MemSQLVelocityDB
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SingleStore: The Increasing Momentum of Multi-Model Database Systems
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