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DBMS > IBM Db2 warehouse vs. RocksDB vs. TerminusDB vs. VelocityDB vs. YDB

System Properties Comparison IBM Db2 warehouse vs. RocksDB vs. TerminusDB vs. VelocityDB vs. YDB

Editorial information provided by DB-Engines
NameIBM Db2 warehouse infoformerly named IBM dashDB  Xexclude from comparisonRocksDB  Xexclude from comparisonTerminusDB infoformer name was DataChemist  Xexclude from comparisonVelocityDB  Xexclude from comparisonYDB  Xexclude from comparison
DescriptionCloud-based data warehousing serviceEmbeddable persistent key-value store optimized for fast storage (flash and RAM)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)A distributed fault-tolerant database service, with high availability, scalability, immediate consistency and ACID transactions and providing an Amazon DynamoDB compatible API
Primary database modelRelational DBMSKey-value storeGraph DBMSGraph DBMS
Object oriented DBMS
Document store
Relational DBMS
Secondary database modelsDocument store
RDF store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.37
Rank#160  Overall
#74  Relational DBMS
Score3.41
Rank#86  Overall
#11  Key-value stores
Score0.23
Rank#316  Overall
#27  Graph DBMS
Score0.11
Rank#354  Overall
#37  Graph DBMS
#15  Object oriented DBMS
Score0.33
Rank#287  Overall
#43  Document stores
#132  Relational DBMS
Websitewww.ibm.com/­products/­db2/­warehouserocksdb.orgterminusdb.comvelocitydb.comgithub.com/­ydb-platform/­ydb
ydb.tech
Technical documentationgithub.com/­facebook/­rocksdb/­wikiterminusdb.github.io/­terminusdb/­#velocitydb.com/­UserGuideydb.tech/­en/­docs
DeveloperIBMFacebook, Inc.DataChemist Ltd.VelocityDB IncYandex
Initial release20142013201820112019
Current release9.2.1, May 202411.0.0, January 20237.x
License infoCommercial or Open SourcecommercialOpen Source infoBSDOpen Source infoGPL V3commercialOpen Source infoApache 2.0; commercial license available
Cloud-based only infoOnly available as a cloud serviceyesnononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC++Prolog, RustC#
Server operating systemshostedLinuxLinuxAny that supports .NETLinux
Data schemeyesschema-freeyesyesFlexible Schema (defined schema, partial schema, schema free)
Typing infopredefined data types such as float or dateyesnoyesyesyes
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 infoImport/export of XML data possiblenononono
Secondary indexesyesnoyesyes
SQL infoSupport of SQLyesnoSQL-like query language (WOQL)noSQL-like query language (YQL)
APIs and other access methods.NET Client API
JDBC
ODBC
OLE DB
C++ API
Java API
OWL
RESTful HTTP API
WOQL (Web Object Query Language)
.NetRESTful HTTP API (DynamoDB compatible)
Supported programming languagesJava
JavaScript (Node.js)
Perl
PHP
Python
R
Ruby
C
C++
Go
Java
Perl
Python
Ruby
JavaScript
Python
.NetGo
Java
JavaScript (Node.js)
PHP
Python
Server-side scripts infoStored proceduresPL/SQL, SQL PLnoyesnono
TriggersyesyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesShardinghorizontal partitioningGraph PartitioningShardingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyesyesJournaling StreamsActive-passive shard replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesnoyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDyesACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes
Durability infoSupport for making data persistentyesyesyes infoin-memory journalingyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesyesno
User concepts infoAccess controlfine grained access rights according to SQL-standardnoRole-based access controlBased on Windows AuthenticationAccess rights defined for Yandex Cloud users

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More resources
IBM Db2 warehouse infoformerly named IBM dashDBRocksDBTerminusDB infoformer name was DataChemistVelocityDBYDB
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