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DBMS > LMDB vs. TerminusDB vs. TiDB vs. VelocityDB

System Properties Comparison LMDB vs. TerminusDB vs. TiDB vs. VelocityDB

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Editorial information provided by DB-Engines
NameLMDB  Xexclude from comparisonTerminusDB infoformer name was DataChemist  Xexclude from comparisonTiDB  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionA high performant, light-weight, embedded key-value database libraryScalable Graph Database platform making enterprise data available by exploiting inferred entities and relationshipsTiDB is an open source distributed SQL database that supports Hybrid Transactional/Analytical Processing (HTAP) workloads. It is MySQL compatible and features horizontal scalability, strong consistency, and high availability.A .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelKey-value storeGraph DBMSRelational DBMSGraph DBMS
Object oriented DBMS
Secondary database modelsDocument store
RDF store
Document store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.99
Rank#125  Overall
#21  Key-value stores
Score0.17
Rank#325  Overall
#29  Graph DBMS
Score4.66
Rank#70  Overall
#38  Relational DBMS
Score0.05
Rank#358  Overall
#36  Graph DBMS
#16  Object oriented DBMS
Websitewww.symas.com/­symas-embedded-database-lmdbterminusdb.compingcap.comvelocitydb.com
Technical documentationwww.lmdb.tech/­docterminusdb.github.io/­terminusdb/­#docs.pingcap.com/­tidb/­stablevelocitydb.com/­UserGuide
DeveloperSymasDataChemist Ltd.PingCAP, Inc.VelocityDB Inc
Initial release2011201820162011
Current release0.9.32, January 202411.0.0, January 20238.0.0, March 20247.x
License infoCommercial or Open SourceOpen SourceOpen Source infoGPL V3Open Source infoApache 2.0commercial
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.
TiDB Cloud: Fully-managed TiDB Service. Bring everything great about TiDB to the cloud.
Implementation languageCProlog, RustGo, RustC#
Server operating systemsLinux
Unix
Windows
LinuxLinuxAny that supports .NET
Data schemeschema-freeyesyesyes
Typing infopredefined data types such as float or dateyesyesyes
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 indexesnoyesyes
SQL infoSupport of SQLnoSQL-like query language (WOQL)yesno
APIs and other access methodsOWL
RESTful HTTP API
WOQL (Web Object Query Language)
GORM
JDBC
ODBC
Proprietary protocol
SQLAlchemy
.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
JavaScript
Python
Ada
C
C#
C++
D
Delphi
Eiffel
Erlang
Haskell
Java
JavaScript (Node.js)
Objective-C
OCaml
Perl
PHP
Python
Ruby
Scheme
Tcl
.Net
Server-side scripts infoStored proceduresnoyesnono
TriggersnoyesnoCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesnoneGraph Partitioninghorizontal partitioning (by key range)Sharding
Replication methods infoMethods for redundantly storing data on multiple nodesnoneJournaling StreamsUsing Raft consensus algorithm to ensure data replication with strong consistency among multiple replicas.
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonoyes infowith TiSpark Connectorno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyesyes infofull support since version 6.6no
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyes infoin-memory journalingyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnoyes
User concepts infoAccess controlnoRole-based access controlFine grained access rights according to SQL-standardBased on Windows Authentication
More information provided by the system vendor
LMDBTerminusDB infoformer name was DataChemistTiDBVelocityDB
Specific characteristicsTiDB is an advanced open-source, distributed SQL database for modern application...
» more
Competitive advantages- HORIZONTAL SCALING : TiDB grants total transparency into your data workloads without...
» more
Typical application scenariosTiDB is ideal for transactional applications that require extreme scalability and...
» more
Key customersBlock, Pinterest, Catalyst, Bolt, Flipkart, Capcom, Shopee (E-commerce), JD Cloud...
» more
Market metrics34K+ GitHub stars 5K+ members in TiDB Community Slack 1K+ community contributors...
» more
Licensing and pricing modelsTiDB Community : Free open source software (Apache 2.0) TiDB Self-Hosted : Enterprise...
» more

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LMDBTerminusDB infoformer name was DataChemistTiDBVelocityDB
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