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DBMS > AlaSQL vs. CouchDB vs. HyperSQL vs. LMDB

System Properties Comparison AlaSQL vs. CouchDB vs. HyperSQL vs. LMDB

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Editorial information provided by DB-Engines
NameAlaSQL  Xexclude from comparisonCouchDB infostands for "Cluster Of Unreliable Commodity Hardware"  Xexclude from comparisonHyperSQL infoalso known as HSQLDB  Xexclude from comparisonLMDB  Xexclude from comparison
DescriptionJavaScript DBMS libraryA native JSON - document store inspired by Lotus Notes, scalable from globally distributed server-clusters down to mobile phones.Multithreaded, transactional RDBMS written in Java infoalso known as HSQLDBA high performant, light-weight, embedded key-value database library
Primary database modelDocument store
Relational DBMS
Document storeRelational DBMSKey-value store
Secondary database modelsSpatial DBMS infousing the Geocouch extension
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.46
Rank#260  Overall
#40  Document stores
#121  Relational DBMS
Score9.30
Rank#45  Overall
#7  Document stores
Score3.49
Rank#87  Overall
#47  Relational DBMS
Score1.99
Rank#125  Overall
#21  Key-value stores
Websitealasql.orgcouchdb.apache.orghsqldb.orgwww.symas.com/­symas-embedded-database-lmdb
Technical documentationgithub.com/­AlaSQL/­alasqldocs.couchdb.org/­en/­stablehsqldb.org/­web/­hsqlDocsFrame.htmlwww.lmdb.tech/­doc
DeveloperAndrey Gershun & Mathias R. WulffApache Software Foundation infoApache top-level project, originally developed by Damien Katz, a former Lotus Notes developerSymas
Initial release2014200520012011
Current release3.3.3, December 20232.7.2, June 20230.9.32, January 2024
License infoCommercial or Open SourceOpen Source infoMIT-LicenseOpen Source infoApache version 2Open Source infobased on BSD licenseOpen Source
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaScriptErlangJavaC
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js)Android
BSD
Linux
OS X
Solaris
Windows
All OS with a Java VM infoEmbedded (into Java applications) and Client-Server operating modesLinux
Unix
Windows
Data schemeschema-freeschema-freeyesschema-free
Typing infopredefined data types such as float or datenonoyes
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 indexesnoyes infovia viewsyesno
SQL infoSupport of SQLClose to SQL99, but no user access control, stored procedures and host language bindings.noyesno
APIs and other access methodsJavaScript APIRESTful HTTP/JSON APIHTTP API infoJDBC via HTTP
JDBC
ODBC
Supported programming languagesJavaScriptC
C#
ColdFusion
Erlang
Haskell
Java
JavaScript
Lisp
Lua
Objective-C
OCaml
Perl
PHP
PL/SQL
Python
Ruby
Smalltalk
All languages supporting JDBC/ODBC
Java
.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 proceduresnoView functions in JavaScriptJava, SQLno
Triggersyesyesyesno
Partitioning methods infoMethods for storing different data on different nodesnoneSharding infoimproved architecture with release 2.0nonenone
Replication methods infoMethods for redundantly storing data on multiple nodesnoneMulti-source replication
Source-replica replication
nonenone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesnono
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneEventual ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesnoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayes infoonly for local storage and DOM-storageno infoatomic operations within a single document possibleACIDACID
Concurrency infoSupport for concurrent manipulation of datayes infostrategy: optimistic lockingyesyes
Durability infoSupport for making data persistentyes infoby using IndexedDB, SQL.JS or proprietary FileStorageyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnoyesyes
User concepts infoAccess controlnoAccess rights for users can be defined per databasefine grained access rights according to SQL-standardno

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More resources
AlaSQLCouchDB infostands for "Cluster Of Unreliable Commodity Hardware"HyperSQL infoalso known as HSQLDBLMDB
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