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DBMS > AlaSQL vs. Alibaba Cloud Log Service vs. CouchDB vs. Memcached

System Properties Comparison AlaSQL vs. Alibaba Cloud Log Service vs. CouchDB vs. Memcached

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Editorial information provided by DB-Engines
NameAlaSQL  Xexclude from comparisonAlibaba Cloud Log Service  Xexclude from comparisonCouchDB infostands for "Cluster Of Unreliable Commodity Hardware"  Xexclude from comparisonMemcached  Xexclude from comparison
DescriptionJavaScript DBMS libraryA complete real-time data logging service that supports collection, consumption, shipping, search, and analysis of logs.A native JSON - document store inspired by Lotus Notes, scalable from globally distributed server-clusters down to mobile phones.In-memory key-value store, originally intended for caching
Primary database modelDocument store
Relational DBMS
Search engineDocument storeKey-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
Score0.43
Rank#265  Overall
#18  Search engines
Score9.30
Rank#45  Overall
#7  Document stores
Score19.42
Rank#32  Overall
#4  Key-value stores
Websitealasql.orgwww.alibabacloud.com/­product/­log-servicecouchdb.apache.orgwww.memcached.org
Technical documentationgithub.com/­AlaSQL/­alasqlwww.alibabacloud.com/­help/­en/­slsdocs.couchdb.org/­en/­stablegithub.com/­memcached/­memcached/­wiki
DeveloperAndrey Gershun & Mathias R. WulffAlibabaCloud Inc.Apache Software Foundation infoApache top-level project, originally developed by Damien Katz, a former Lotus Notes developerDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournal
Initial release2014201620052003
Current release3.3.3, December 20231.6.25, March 2024
License infoCommercial or Open SourceOpen Source infoMIT-LicensecommercialOpen Source infoApache version 2Open Source infoBSD license
Cloud-based only infoOnly available as a cloud servicenoyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJavaScriptErlangC
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js)hostedAndroid
BSD
Linux
OS X
Solaris
Windows
FreeBSD
Linux
OS X
Unix
Windows
Data schemeschema-freeschema-freeschema-freeschema-free
Typing infopredefined data types such as float or datenoyesnono
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
Secondary indexesnoyesyes infovia viewsno
SQL infoSupport of SQLClose to SQL99, but no user access control, stored procedures and host language bindings.SQL for queryingnono
APIs and other access methodsJavaScript APIHTTP RESTRESTful HTTP/JSON APIProprietary protocol
Supported programming languagesJavaScriptC
C#
ColdFusion
Erlang
Haskell
Java
JavaScript
Lisp
Lua
Objective-C
OCaml
Perl
PHP
PL/SQL
Python
Ruby
Smalltalk
.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
Server-side scripts infoStored proceduresnonoView functions in JavaScriptno
Triggersyesyesyesno
Partitioning methods infoMethods for storing different data on different nodesnoneShardingSharding infoimproved architecture with release 2.0none
Replication methods infoMethods for redundantly storing data on multiple nodesnone3 replicasMulti-source replication
Source-replica replication
none infoRepcached, a Memcached patch, provides this functionallity
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoES-Hadoop Connectoryesno
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneEventual ConsistencyEventual Consistency
Foreign keys infoReferential integrityyesnonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayes infoonly for local storage and DOM-storagenono infoatomic operations within a single document possibleno
Concurrency infoSupport for concurrent manipulation of datayesyes infostrategy: optimistic lockingyes
Durability infoSupport for making data persistentyes infoby using IndexedDB, SQL.JS or proprietary FileStorageyesyesno
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnono
User concepts infoAccess controlnoAlibaba Cloud user access controlAccess rights for users can be defined per databaseyes infousing SASL (Simple Authentication and Security Layer) protocol
More information provided by the system vendor
AlaSQLAlibaba Cloud Log ServiceCouchDB infostands for "Cluster Of Unreliable Commodity Hardware"Memcached
Specific characteristicsA real-time service for telementry data (log, metric, trace). Alibaba Cloud Log Service...
» more
Competitive advantages* Ease of use: Completes data collections from more than 30 data sources within five...
» more
Typical application scenarios* Log/Trace/Event Search & Analysis * Application Monitoring * Operation Analysis...
» more
Key customers* Alibaba & Ant-Finance:he infrastructure service for the Corp * Over 22k Subscriber...
» more
Licensing and pricing modelsPay-As-You-Go https://www.alibabacloud.com/product/log-service/pricing
» more

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More resources
AlaSQLAlibaba Cloud Log ServiceCouchDB infostands for "Cluster Of Unreliable Commodity Hardware"Memcached
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