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DBMS > chDB vs. LMDB vs. OpenTSDB

System Properties Comparison chDB vs. LMDB vs. OpenTSDB

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Editorial information provided by DB-Engines
NamechDB  Xexclude from comparisonLMDB  Xexclude from comparisonOpenTSDB  Xexclude from comparison
DescriptionAn embedded SQL OLAP Engine powered by ClickHouseA high performant, light-weight, embedded key-value database libraryScalable Time Series DBMS based on HBase
Primary database modelRelational DBMSKey-value storeTime Series DBMS
Secondary database modelsTime Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.00
Rank#383  Overall
#158  Relational DBMS
Score1.99
Rank#125  Overall
#21  Key-value stores
Score1.68
Rank#146  Overall
#12  Time Series DBMS
Websitegithub.com/­chdb-io/­chdbwww.symas.com/­symas-embedded-database-lmdbopentsdb.net
Technical documentationdoc.chdb.iowww.lmdb.tech/­docopentsdb.net/­docs/­build/­html/­index.html
DeveloperSymascurrently maintained by Yahoo and other contributors
Initial release202320112011
Current release0.9.32, January 2024
License infoCommercial or Open SourceOpen Source infoApache Version 2.0Open SourceOpen Source infoLGPL
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageCJava
Server operating systemsserver-lessLinux
Unix
Windows
Linux
Windows
Data schemeschema-freeschema-free
Typing infopredefined data types such as float or datenumeric data for metrics, strings for tags
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.nono
Secondary indexesnono
SQL infoSupport of SQLClose to ANSI SQL (SQL/JSON + extensions)nono
APIs and other access methodsHTTP API
Telnet API
Supported programming languagesBun
C
C++
Go
JavaScript (Node.js)
Python
Rust
.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
Erlang
Go
Java
Python
R
Ruby
Server-side scripts infoStored proceduresnono
Triggersnono
Partitioning methods infoMethods for storing different data on different nodesnoneSharding infobased on HBase
Replication methods infoMethods for redundantly storing data on multiple nodesnoneselectable replication factor infobased on HBase
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency infobased on HBase
Foreign keys infoReferential integritynono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDno
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesno
User concepts infoAccess controlnono

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More resources
chDBLMDBOpenTSDB
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