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DBMS > RRDtool vs. SQream DB vs. TerminusDB vs. VelocityDB

System Properties Comparison RRDtool vs. SQream DB vs. TerminusDB vs. VelocityDB

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Editorial information provided by DB-Engines
NameRRDtool  Xexclude from comparisonSQream DB  Xexclude from comparisonTerminusDB infoformer name was DataChemist  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionIndustry standard data logging and graphing tool for time series data. RRD is an acronym for round-robin database. infoThe data is stored in a circular buffer, thus the system storage footprint remains constant over time.a GPU-based, columnar RDBMS for big data analytics workloadsScalable 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 modelTime Series DBMSRelational DBMSGraph DBMSGraph DBMS
Object oriented DBMS
Secondary database modelsDocument store
RDF store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.90
Rank#132  Overall
#11  Time Series DBMS
Score0.74
Rank#224  Overall
#103  Relational DBMS
Score0.23
Rank#316  Overall
#27  Graph DBMS
Score0.11
Rank#354  Overall
#37  Graph DBMS
#15  Object oriented DBMS
Websiteoss.oetiker.ch/­rrdtoolsqream.comterminusdb.comvelocitydb.com
Technical documentationoss.oetiker.ch/­rrdtool/­docdocs.sqream.comterminusdb.github.io/­terminusdb/­#velocitydb.com/­UserGuide
DeveloperTobias OetikerSQream TechnologiesDataChemist Ltd.VelocityDB Inc
Initial release1999201720182011
Current release1.8.0, 20222022.1.6, December 202211.0.0, January 20237.x
License infoCommercial or Open SourceOpen Source infoGPL V2 and FLOSScommercialOpen Source infoGPL V3commercial
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC infoImplementations in Java (e.g. RRD4J) and C# availableC++, CUDA, Haskell, Java, ScalaProlog, RustC#
Server operating systemsHP-UX
Linux
LinuxLinuxAny that supports .NET
Data schemeyesyesyesyes
Typing infopredefined data types such as float or dateNumeric data onlyyes, ANSI Standard SQL Typesyesyes
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 infoExporting into and restoring from XML files possiblenono
Secondary indexesnonoyes
SQL infoSupport of SQLnoyesSQL-like query language (WOQL)no
APIs and other access methodsin-process shared library
Pipes
.Net
JDBC
ODBC
OWL
RESTful HTTP API
WOQL (Web Object Query Language)
.Net
Supported programming languagesC infowith librrd library
C# infowith a different implementation of RRDTool
Java infowith a different implementation of RRDTool
JavaScript (Node.js) infowith a different implementation of RRDTool
Lua
Perl
PHP infowith a wrapper library
Python
Ruby
C++
Java
JavaScript (Node.js)
Python
JavaScript
Python
.Net
Server-side scripts infoStored proceduresnouser defined functions in Pythonyesno
TriggersnonoyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesnonehorizontal and vertical partitioningGraph PartitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnonenoneJournaling Streams
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayes infoby using the rrdcached daemonyesyesyes
Durability infoSupport for making data persistentyesyesyes infoin-memory journalingyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes
User concepts infoAccess controlnoRole-based access controlBased on Windows Authentication

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More resources
RRDtoolSQream DBTerminusDB infoformer name was DataChemistVelocityDB
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