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DBMS > AlaSQL vs. Hazelcast vs. IBM Cloudant vs. PostGIS

System Properties Comparison AlaSQL vs. Hazelcast vs. IBM Cloudant vs. PostGIS

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Editorial information provided by DB-Engines
NameAlaSQL  Xexclude from comparisonHazelcast  Xexclude from comparisonIBM Cloudant  Xexclude from comparisonPostGIS  Xexclude from comparison
DescriptionJavaScript DBMS libraryA widely adopted in-memory data gridDatabase as a Service offering based on Apache CouchDBSpatial extension of PostgreSQL
Primary database modelDocument store
Relational DBMS
Key-value storeDocument storeSpatial DBMS
Secondary database modelsDocument store infoJSON support with IMDG 3.12Relational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.42
Rank#264  Overall
#42  Document stores
#122  Relational DBMS
Score5.72
Rank#59  Overall
#6  Key-value stores
Score2.85
Rank#95  Overall
#18  Document stores
Score20.16
Rank#29  Overall
#1  Spatial DBMS
Websitealasql.orghazelcast.comwww.ibm.com/­products/­cloudantpostgis.net
Technical documentationgithub.com/­AlaSQL/­alasqlhazelcast.org/­imdg/­docscloud.ibm.com/­docs/­Cloudantpostgis.net/­documentation
DeveloperAndrey Gershun & Mathias R. WulffHazelcastIBM, Apache Software Foundation infoIBM acquired Cloudant in February 2014
Initial release2014200820102005
Current release5.3.6, November 20233.4.2, February 2024
License infoCommercial or Open SourceOpen Source infoMIT-LicenseOpen Source infoApache Version 2; commercial licenses availablecommercialOpen Source infoGPL v2.0
Cloud-based only infoOnly available as a cloud servicenonoyesno
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJavaScriptJavaErlangC
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js)All OS with a Java VMhosted
Data schemeschema-freeschema-freeschema-freeyes
Typing infopredefined data types such as float or datenoyesnoyes
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.noyes infothe object must implement a serialization strategynoyes
Secondary indexesnoyesyesyes
SQL infoSupport of SQLClose to SQL99, but no user access control, stored procedures and host language bindings.SQL-like query languagenoyes
APIs and other access methodsJavaScript APIJCache
JPA
Memcached protocol
RESTful HTTP API
RESTful HTTP/JSON API
Supported programming languagesJavaScript.Net
C#
C++
Clojure
Go
Java
JavaScript (Node.js)
Python
Scala
C#
Java
JavaScript
Objective-C
PHP
Ruby
Server-side scripts infoStored proceduresnoyes infoEvent Listeners, Executor ServicesView functions (Map-Reduce) in JavaScriptuser defined functions
Triggersyesyes infoEventsyesyes
Partitioning methods infoMethods for storing different data on different nodesnoneShardingShardingyes infobased on PostgreSQL
Replication methods infoMethods for redundantly storing data on multiple nodesnoneyes infoReplicated MapMulti-source replication
Source-replica replication
yes infobased on PostgreSQL
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneImmediate Consistency or Eventual Consistency selectable by user infoRaft Consensus AlgorithmEventual ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesnonoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayes infoonly for local storage and DOM-storageone or two-phase-commit; repeatable reads; read commitedno infoatomic operations within a document possibleACID
Concurrency infoSupport for concurrent manipulation of datayesyes infoOptimistic lockingyes
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.yesyesnono
User concepts infoAccess controlnoRole-based access controlAccess rights for users can be defined per databaseyes infobased on PostgreSQL

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More resources
AlaSQLHazelcastIBM CloudantPostGIS
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