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DBMS > AlaSQL vs. Datomic vs. IBM Cloudant vs. SiteWhere

System Properties Comparison AlaSQL vs. Datomic vs. IBM Cloudant vs. SiteWhere

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Editorial information provided by DB-Engines
NameAlaSQL  Xexclude from comparisonDatomic  Xexclude from comparisonIBM Cloudant  Xexclude from comparisonSiteWhere  Xexclude from comparison
DescriptionJavaScript DBMS libraryDatomic builds on immutable values, supports point-in-time queries and uses 3rd party systems for durabilityDatabase as a Service offering based on Apache CouchDBM2M integration platform for persisting/querying time series data
Primary database modelDocument store
Relational DBMS
Relational DBMSDocument storeTime Series 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
Score1.55
Rank#144  Overall
#67  Relational DBMS
Score2.85
Rank#95  Overall
#18  Document stores
Score0.07
Rank#347  Overall
#33  Time Series DBMS
Websitealasql.orgwww.datomic.comwww.ibm.com/­products/­cloudantgithub.com/­sitewhere/­sitewhere
Technical documentationgithub.com/­AlaSQL/­alasqldocs.datomic.comcloud.ibm.com/­docs/­Cloudantsitewhere1.sitewhere.io/­index.html
DeveloperAndrey Gershun & Mathias R. WulffCognitectIBM, Apache Software Foundation infoIBM acquired Cloudant in February 2014SiteWhere
Initial release2014201220102010
Current release1.0.7180, July 2024
License infoCommercial or Open SourceOpen Source infoMIT-Licensecommercial infolimited edition freecommercialOpen Source infoCommon Public Attribution License Version 1.0
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 languageJavaScriptJava, ClojureErlangJava
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js)All OS with a Java VMhostedLinux
OS X
Windows
Data schemeschema-freeyesschema-freepredefined scheme
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.nononono
Secondary indexesnoyesyesno
SQL infoSupport of SQLClose to SQL99, but no user access control, stored procedures and host language bindings.nonono
APIs and other access methodsJavaScript APIRESTful HTTP APIRESTful HTTP/JSON APIHTTP REST
Supported programming languagesJavaScriptClojure
Java
C#
Java
JavaScript
Objective-C
PHP
Ruby
Server-side scripts infoStored proceduresnoyes infoTransaction FunctionsView functions (Map-Reduce) in JavaScript
TriggersyesBy using transaction functionsyes
Partitioning methods infoMethods for storing different data on different nodesnonenone infoBut extensive use of caching in the application peersShardingSharding infobased on HBase
Replication methods infoMethods for redundantly storing data on multiple nodesnonenone infoBut extensive use of caching in the application peersMulti-source replication
Source-replica replication
selectable replication factor infobased on HBase
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonoyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneImmediate ConsistencyEventual ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesnonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayes infoonly for local storage and DOM-storageACIDno infoatomic operations within a document possibleno
Concurrency infoSupport for concurrent manipulation of datayesyes infoOptimistic lockingyes
Durability infoSupport for making data persistentyes infoby using IndexedDB, SQL.JS or proprietary FileStorageyes infousing external storage systems (e.g. Cassandra, DynamoDB, PostgreSQL, Couchbase and others)yesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes inforecommended only for testing and developmentnono
User concepts infoAccess controlnonoAccess rights for users can be defined per databaseUsers with fine-grained authorization concept

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More resources
AlaSQLDatomicIBM CloudantSiteWhere
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