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DBMS > AlaSQL vs. Amazon CloudSearch vs. Coveo vs. Ehcache

System Properties Comparison AlaSQL vs. Amazon CloudSearch vs. Coveo vs. Ehcache

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Editorial information provided by DB-Engines
NameAlaSQL  Xexclude from comparisonAmazon CloudSearch  Xexclude from comparisonCoveo  Xexclude from comparisonEhcache  Xexclude from comparison
DescriptionJavaScript DBMS libraryA hosted search engine service by Amazon with the data stored in Amazons cloudAI-powered hosted search, recommendation and personalization platform providing tools for both low-code and full-code developmentA widely adopted Java cache with tiered storage options
Primary database modelDocument store
Relational DBMS
Search engineSearch engineKey-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.51
Rank#256  Overall
#40  Document stores
#118  Relational DBMS
Score1.81
Rank#137  Overall
#12  Search engines
Score2.11
Rank#118  Overall
#11  Search engines
Score4.64
Rank#68  Overall
#8  Key-value stores
Websitealasql.orgaws.amazon.com/­cloudsearchwww.coveo.comwww.ehcache.org
Technical documentationgithub.com/­AlaSQL/­alasqldocs.aws.amazon.com/­cloudsearchdocs.coveo.comwww.ehcache.org/­documentation
DeveloperAndrey Gershun & Mathias R. WulffAmazonCoveoTerracotta Inc, owned by Software AG
Initial release2014201220122009
Current release3.10.0, March 2022
License infoCommercial or Open SourceOpen Source infoMIT-LicensecommercialcommercialOpen Source infoApache Version 2; commercial licenses available
Cloud-based only infoOnly available as a cloud servicenoyesyesno
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJavaScriptJava
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js)hostedhostedAll OS with a Java VM
Data schemeschema-freeyeshybrid - fields need to be configured prior to indexing, but relationships can be exploited at query time without pre-configurationschema-free
Typing infopredefined data types such as float or datenoyesyesyes
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 indexesnoyes infoall search fields are automatically indexedyesno
SQL infoSupport of SQLClose to SQL99, but no user access control, stored procedures and host language bindings.nonono
APIs and other access methodsJavaScript APIHTTP APIRESTful HTTP APIJCache
Supported programming languagesJavaScriptC#
Java
JavaScript
Python
Java
Server-side scripts infoStored proceduresnononono
Triggersyesnoyesyes infoCache Event Listeners
Partitioning methods infoMethods for storing different data on different nodesnoneyes infoautomatic partitioning across Amazon Search Instance as requiredyesSharding infoby using Terracotta Server
Replication methods infoMethods for redundantly storing data on multiple nodesnoneyes infomanaged transparently by AWSyesyes infoby using Terracotta Server
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneImmediate ConsistencyTunable Consistency (Strong, Eventual, Weak)
Foreign keys infoReferential integrityyesnoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayes infoonly for local storage and DOM-storagenoyesyes infosupports JTA and can work as an XA resource
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyes infoby using IndexedDB, SQL.JS or proprietary FileStorageyesyesyes infousing a tiered cache-storage approach
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes
User concepts infoAccess controlnoauthentication via encrypted signaturesgranular access controls, API key management, content filtersno

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More resources
AlaSQLAmazon CloudSearchCoveoEhcache
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