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DBMS > LMDB vs. Lovefield vs. RRDtool vs. SQLite vs. VelocityDB

System Properties Comparison LMDB vs. Lovefield vs. RRDtool vs. SQLite vs. VelocityDB

Editorial information provided by DB-Engines
NameLMDB  Xexclude from comparisonLovefield  Xexclude from comparisonRRDtool  Xexclude from comparisonSQLite  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionA high performant, light-weight, embedded key-value database libraryEmbeddable relational database for web apps written in pure JavaScriptIndustry 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.Widely used embeddable, in-process RDBMSA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelKey-value storeRelational DBMSTime Series DBMSRelational DBMSGraph DBMS
Object oriented DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.99
Rank#125  Overall
#21  Key-value stores
Score0.29
Rank#293  Overall
#133  Relational DBMS
Score1.87
Rank#136  Overall
#11  Time Series DBMS
Score114.32
Rank#10  Overall
#7  Relational DBMS
Score0.05
Rank#358  Overall
#36  Graph DBMS
#16  Object oriented DBMS
Websitewww.symas.com/­symas-embedded-database-lmdbgoogle.github.io/­lovefieldoss.oetiker.ch/­rrdtoolwww.sqlite.orgvelocitydb.com
Technical documentationwww.lmdb.tech/­docgithub.com/­google/­lovefield/­blob/­master/­docs/­spec_index.mdoss.oetiker.ch/­rrdtool/­docwww.sqlite.org/­docs.htmlvelocitydb.com/­UserGuide
DeveloperSymasGoogleTobias OetikerDwayne Richard HippVelocityDB Inc
Initial release20112014199920002011
Current release0.9.32, January 20242.1.12, February 20171.8.0, 20223.46.0  (23 May 2024), May 20247.x
License infoCommercial or Open SourceOpen SourceOpen Source infoApache 2.0Open Source infoGPL V2 and FLOSSOpen Source infoPublic Domaincommercial
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageCJavaScriptC infoImplementations in Java (e.g. RRD4J) and C# availableCC#
Server operating systemsLinux
Unix
Windows
server-less, requires a JavaScript environment (browser, Node.js) infotested with Chrome, Firefox, IE, SafariHP-UX
Linux
server-lessAny that supports .NET
Data schemeschema-freeyesyesyes infodynamic column typesyes
Typing infopredefined data types such as float or dateyesNumeric data onlyyes infonot rigid because of 'dynamic typing' concept.yes
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.nonono infoExporting into and restoring from XML files possiblenono
Secondary indexesnoyesnoyesyes
SQL infoSupport of SQLnoSQL-like query language infovia JavaScript builder patternnoyes infoSQL-92 is not fully supportedno
APIs and other access methodsin-process shared library
Pipes
ADO.NET infoinofficial driver
JDBC infoinofficial driver
ODBC infoinofficial driver
.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
JavaScriptC 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
Actionscript
Ada
Basic
C
C#
C++
D
Delphi
Forth
Fortran
Haskell
Java
JavaScript
Lisp
Lua
MatLab
Objective-C
OCaml
Perl
PHP
PL/SQL
Python
R
Ruby
Scala
Scheme
Smalltalk
Tcl
.Net
Server-side scripts infoStored proceduresnonononono
TriggersnoUsing read-only observersnoyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesnonenonenonenoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnonenonenonenone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencynoneImmediate Consistency
Foreign keys infoReferential integritynoyesnoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDnoACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes infoby using the rrdcached daemonyes infovia file-system locksyes
Durability infoSupport for making data persistentyesyes, by using IndexedDB or the cloud service Firebase Realtime Databaseyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes infousing MemoryDByesyesyes
User concepts infoAccess controlnonononoBased on Windows Authentication

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More resources
LMDBLovefieldRRDtoolSQLiteVelocityDB
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