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DBMS > Greenplum vs. IBM Db2 warehouse vs. Immudb vs. TerminusDB vs. VelocityDB

System Properties Comparison Greenplum vs. IBM Db2 warehouse vs. Immudb vs. TerminusDB vs. VelocityDB

Editorial information provided by DB-Engines
NameGreenplum  Xexclude from comparisonIBM Db2 warehouse infoformerly named IBM dashDB  Xexclude from comparisonImmudb  Xexclude from comparisonTerminusDB infoformer name was DataChemist  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionAnalytic Database platform built on PostgreSQL. Full name is Pivotal Greenplum Database infoA logical database in Greenplum is an array of individual PostgreSQL databases working together to present a single database image.Cloud-based data warehousing serviceAn open source immutable (append-only) database with cryptographic verification which makes it tamper-resistant and fully auditable.Scalable 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 DBMSKey-value storeGraph DBMSGraph DBMS
Object oriented DBMS
Secondary database modelsDocument store
Spatial DBMS
Relational DBMSDocument store
RDF store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score8.08
Rank#48  Overall
#31  Relational DBMS
Score1.37
Rank#160  Overall
#74  Relational DBMS
Score0.31
Rank#295  Overall
#42  Key-value stores
Score0.23
Rank#316  Overall
#27  Graph DBMS
Score0.11
Rank#354  Overall
#37  Graph DBMS
#15  Object oriented DBMS
Websitegreenplum.orgwww.ibm.com/­products/­db2/­warehousegithub.com/­codenotary/­immudb
immudb.io
terminusdb.comvelocitydb.com
Technical documentationdocs.greenplum.orgdocs.immudb.ioterminusdb.github.io/­terminusdb/­#velocitydb.com/­UserGuide
DeveloperPivotal Software Inc.IBMCodenotaryDataChemist Ltd.VelocityDB Inc
Initial release20052014202020182011
Current release7.0.0, September 20231.2.3, April 202211.0.0, January 20237.x
License infoCommercial or Open SourceOpen Source infoApache 2.0commercialOpen Source infoApache Version 2.0Open Source infoGPL V3commercial
Cloud-based only infoOnly available as a cloud servicenoyesnonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageGoProlog, RustC#
Server operating systemsLinuxhostedBSD
Linux
macOS
Solaris
Windows
z/OS
LinuxAny that supports .NET
Data schemeyesyesschema-freeyesyes
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.yes infosince Version 4.2no infoImport/export of XML data possiblenonono
Secondary indexesyesyesyesyes
SQL infoSupport of SQLyesyesSQL-like syntaxSQL-like query language (WOQL)no
APIs and other access methodsJDBC
ODBC
.NET Client API
JDBC
ODBC
OLE DB
gRPC protocol
PostgreSQL wire protocol
OWL
RESTful HTTP API
WOQL (Web Object Query Language)
.Net
Supported programming languagesC
Java
Perl
Python
R
Java
JavaScript (Node.js)
Perl
PHP
Python
R
Ruby
.Net
Go
Java
JavaScript (Node.js)
Python
JavaScript
Python
.Net
Server-side scripts infoStored proceduresyesPL/SQL, SQL PLnoyesno
TriggersyesyesnoyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesShardingShardingShardingGraph PartitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesSource-replica replicationyesJournaling Streams
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesyesnoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes
Durability infoSupport for making data persistentyesyesyesyes infoin-memory journalingyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesnoyes
User concepts infoAccess controlfine grained access rights according to SQL-standardfine grained access rights according to SQL-standardRole-based access controlBased on Windows Authentication

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More resources
GreenplumIBM Db2 warehouse infoformerly named IBM dashDBImmudbTerminusDB infoformer name was DataChemistVelocityDB
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