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DBMS > openGauss vs. SingleStore vs. TerminusDB vs. VelocityDB

System Properties Comparison openGauss vs. SingleStore vs. TerminusDB vs. VelocityDB

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Editorial information provided by DB-Engines
NameopenGauss  Xexclude from comparisonSingleStore infoformer name was MemSQL  Xexclude from comparisonTerminusDB infoformer name was DataChemist  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionAn enterprise-class RDBMS compatible with high-performance, high-availability and high-performance originally developed by HuaweiMySQL 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 typeScalable Graph Database platform making enterprise data available by exploiting inferred entities and relationshipsA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelRelational DBMSRelational DBMSGraph DBMSGraph DBMS
Object oriented DBMS
Secondary database modelsDocument store
Spatial DBMS
Document store
Spatial DBMS
Time Series DBMS
Vector DBMS
Document store
RDF store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.11
Rank#175  Overall
#79  Relational DBMS
Score4.02
Rank#74  Overall
#39  Relational DBMS
Score0.19
Rank#311  Overall
#27  Graph DBMS
Score0.00
Rank#385  Overall
#40  Graph DBMS
#21  Object oriented DBMS
Websitegitee.com/­opengauss
opengauss.org
www.singlestore.comterminusdb.comvelocitydb.com
Technical documentationdocs.opengauss.org/­en
gitee.com/­opengauss/­docs
docs.singlestore.comterminusdb.github.io/­terminusdb/­#velocitydb.com/­UserGuide
DeveloperHuawei and openGauss communitySingleStore Inc.DataChemist Ltd.VelocityDB Inc
Initial release2019201320182011
Current release3.0, March 20228.5, January 202411.0.0, January 20237.x
License infoCommercial or Open SourceOpen Sourcecommercial infofree developer edition availableOpen Source infoGPL V3commercial
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC, C++, JavaC++, GoProlog, RustC#
Server operating systemsLinuxLinux info64 bit version requiredLinuxAny that supports .NET
Data schemeyesyesyesyes
Typing infopredefined data types such as float or dateyesyesyesyes
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.nononono
Secondary indexesyesyesyes
SQL infoSupport of SQLANSI SQL 2011yes infobut no triggers and foreign keysSQL-like query language (WOQL)no
APIs and other access methodsJDBC
ODBC
Cluster Management API infoas HTTP Rest and CLI
HTTP API
JDBC
MongoDB API
ODBC
OWL
RESTful HTTP API
WOQL (Web Object Query Language)
.Net
Supported programming languagesC
C++
Java
Bash
C
C#
Java
JavaScript (Node.js)
Python
JavaScript
Python
.Net
Server-side scripts infoStored proceduresyesyesyesno
TriggersyesnoyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioning (by range, list and hash)Sharding infohash partitioningGraph PartitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesSource-replica replicationSource-replica replication infostores two copies of each physical data partition on two separate nodesJournaling Streams
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono infocan define user-defined aggregate functions for map-reduce-style calculationsnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesnoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyes, multi-version concurrency control (MVCC)yesyes
Durability infoSupport for making data persistentyesyes infoAll updates are persistent, including those to disk-based columnstores and memory-based row stores. Transaction commits are supported via write-ahead log.yes infoin-memory journalingyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesyes
User concepts infoAccess controlAccess rights for users, groups and roles according to SQL-standardFine grained access control via users, groups and rolesRole-based access controlBased on Windows Authentication

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More resources
openGaussSingleStore infoformer name was MemSQLTerminusDB infoformer name was DataChemistVelocityDB
DB-Engines blog posts

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SingleStore: The Increasing Momentum of Multi-Model Database Systems
14 February 2022,  Akmal Chaudhri, SingleStore (sponsor) 

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Recent citations in the news

openGauss Open Source Community Officially Launch
1 July 2020, Huawei

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