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DBMS > Apache Doris vs. chDB vs. LMDB

System Properties Comparison Apache Doris vs. chDB vs. LMDB

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Editorial information provided by DB-Engines
NameApache Doris  Xexclude from comparisonchDB  Xexclude from comparisonLMDB  Xexclude from comparison
DescriptionAn MPP-based analytics DBMS embracing the MySQL protocolAn embedded SQL OLAP Engine powered by ClickHouseA high performant, light-weight, embedded key-value database library
Primary database modelRelational DBMSRelational DBMSKey-value store
Secondary database modelsTime Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.60
Rank#247  Overall
#113  Relational DBMS
Score0.07
Rank#376  Overall
#158  Relational DBMS
Score2.09
Rank#121  Overall
#20  Key-value stores
Websitedoris.apache.org
github.com/­apache/­doris
github.com/­chdb-io/­chdbwww.symas.com/­symas-embedded-database-lmdb
Technical documentationgithub.com/­apache/­doris/­wikidoc.chdb.iowww.lmdb.tech/­doc
DeveloperApache Software Foundation, originally contributed from BaiduSymas
Initial release201720232011
Current release1.2.2, February 20230.9.32, January 2024
License infoCommercial or Open SourceOpen Source infoApache Version 2.0Open Source infoApache Version 2.0Open Source
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaC
Server operating systemsLinuxserver-lessLinux
Unix
Windows
Data schemeyesschema-free
Typing infopredefined data types such as float or dateyes
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 indexesyesno
SQL infoSupport of SQLyesClose to ANSI SQL (SQL/JSON + extensions)no
APIs and other access methodsJDBC
MySQL client
Supported programming languagesJavaBun
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
Server-side scripts infoStored proceduresuser defined functionsno
Triggersnono
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioningnone
Replication methods infoMethods for redundantly storing data on multiple nodesnonenone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACID
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.noyes
User concepts infoAccess controlfine grained access rights according to SQL-standardno

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More resources
Apache DorischDBLMDB
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