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DBMS > LMDB vs. Percona Server for MySQL vs. TDengine vs. TerminusDB vs. VelocityDB

System Properties Comparison LMDB vs. Percona Server for MySQL vs. TDengine vs. TerminusDB vs. VelocityDB

Editorial information provided by DB-Engines
NameLMDB  Xexclude from comparisonPercona Server for MySQL  Xexclude from comparisonTDengine  Xexclude from comparisonTerminusDB infoformer name was DataChemist  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionA high performant, light-weight, embedded key-value database libraryEnhanced drop-in replacement for MySQL based on XtraDB or TokuDB storage engines with improved performance and additional diagnostic and management features.Time Series DBMS and big data platformScalable 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 modelKey-value storeRelational DBMSTime Series DBMSGraph DBMSGraph DBMS
Object oriented DBMS
Secondary database modelsRelational DBMSDocument store
RDF store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score2.09
Rank#121  Overall
#20  Key-value stores
Score2.10
Rank#119  Overall
#57  Relational DBMS
Score2.68
Rank#106  Overall
#9  Time Series DBMS
Score0.23
Rank#316  Overall
#27  Graph DBMS
Score0.11
Rank#354  Overall
#37  Graph DBMS
#15  Object oriented DBMS
Websitewww.symas.com/­symas-embedded-database-lmdbwww.percona.com/­software/­mysql-database/­percona-servergithub.com/­taosdata/­TDengine
tdengine.com
terminusdb.comvelocitydb.com
Technical documentationwww.lmdb.tech/­docwww.percona.com/­downloads/­Percona-Server-LATESTdocs.tdengine.comterminusdb.github.io/­terminusdb/­#velocitydb.com/­UserGuide
DeveloperSymasPerconaTDEngine, previously Taos DataDataChemist Ltd.VelocityDB Inc
Initial release20112008201920182011
Current release0.9.32, January 20248.0.36-28, 20243.0, August 202211.0.0, January 20237.x
License infoCommercial or Open SourceOpen SourceOpen Source infoGPL version 2Open Source infoAGPL V3, also commercial editions availableOpen Source infoGPL V3commercial
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageCC and C++CProlog, RustC#
Server operating systemsLinux
Unix
Windows
LinuxLinux
Windows
LinuxAny that supports .NET
Data schemeschema-freeyesyesyesyes
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.noyesnonono
Secondary indexesnoyesnoyes
SQL infoSupport of SQLnoyesStandard SQL with extensions for time-series applicationsSQL-like query language (WOQL)no
APIs and other access methodsADO.NET
JDBC
ODBC
JDBC
RESTful HTTP API
OWL
RESTful HTTP API
WOQL (Web Object Query Language)
.Net
Supported programming languages.Net
C
C++
Clojure
Go
Haskell
Java
JavaScript (Node.js)
Lisp
Lua
MatLab
Nim
Objective C
OCaml
Perl
PHP
Python
R
Ruby
Rust
Swift
Tcl
Ada
C
C#
C++
D
Eiffel
Erlang
Haskell
Java
Objective-C
OCaml
Perl
PHP
Python
Ruby
Scheme
Tcl
C
C#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
Rust
JavaScript
Python
.Net
Server-side scripts infoStored proceduresnoyesnoyesno
Triggersnoyesyes, via alarm monitoringyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesnoneShardingGraph PartitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnoneMulti-source replication
Source-replica replication
XtraDB Cluster
yesJournaling Streams
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyesnoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDACIDACID
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.yesyesyes
User concepts infoAccess controlnoUsers with fine-grained authorization concept infono user groups or rolesyesRole-based access controlBased on Windows Authentication
More information provided by the system vendor
LMDBPercona Server for MySQLTDengineTerminusDB infoformer name was DataChemistVelocityDB
Specific characteristicsTDengine™ is a next generation data historian purpose-built for Industry 4.0 and...
» more
Competitive advantagesHigh Performance at any Scale: TDengine is purpose-built for handling massive industrial...
» more
Typical application scenariosTDengine is designed for Industrial IoT scenarios, including: Manufacturing Connected...
» more
Market metricsTDengine has garnered over 22,500 stars on GitHub and is used in over 50 countries...
» more
Licensing and pricing modelsTDengine OSS is an open source, cloud native time series database. It includes built-in...
» more
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More resources
LMDBPercona Server for MySQLTDengineTerminusDB infoformer name was DataChemistVelocityDB
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