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DBMS > AlaSQL vs. Cloudflare Workers KV vs. Coveo vs. Firebase Realtime Database vs. LeanXcale

System Properties Comparison AlaSQL vs. Cloudflare Workers KV vs. Coveo vs. Firebase Realtime Database vs. LeanXcale

Editorial information provided by DB-Engines
NameAlaSQL  Xexclude from comparisonCloudflare Workers KV  Xexclude from comparisonCoveo  Xexclude from comparisonFirebase Realtime Database  Xexclude from comparisonLeanXcale  Xexclude from comparison
DescriptionJavaScript DBMS libraryA global, low-latency, key-value store for applications on Cloudflare with exceptionally high read volumes and low-latency.AI-powered hosted search, recommendation and personalization platform providing tools for both low-code and full-code developmentCloud-hosted realtime document store. iOS, Android, and JavaScript clients share one Realtime Database instance and automatically receive updates with the newest data.A highly scalable full ACID SQL database with fast NoSQL data ingestion and GIS capabilities
Primary database modelDocument store
Relational DBMS
Key-value storeSearch engineDocument storeKey-value store
Relational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.51
Rank#256  Overall
#40  Document stores
#118  Relational DBMS
Score0.39
Rank#274  Overall
#39  Key-value stores
Score2.11
Rank#118  Overall
#11  Search engines
Score13.64
Rank#39  Overall
#6  Document stores
Score0.36
Rank#280  Overall
#40  Key-value stores
#129  Relational DBMS
Websitealasql.orgwww.cloudflare.com/­developer-platform/­workers-kvwww.coveo.comfirebase.google.com/­products/­realtime-databasewww.leanxcale.com
Technical documentationgithub.com/­AlaSQL/­alasqldevelopers.cloudflare.com/­kv/­apidocs.coveo.comfirebase.google.com/­docs/­database
DeveloperAndrey Gershun & Mathias R. WulffCloudflareCoveoGoogle infoacquired by Google 2014LeanXcale
Initial release20142018201220122015
License infoCommercial or Open SourceOpen Source infoMIT-Licensecommercialcommercialcommercialcommercial
Cloud-based only infoOnly available as a cloud servicenoyesyesyesno
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJavaScript
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js)hostedhostedhosted
Data schemeschema-freeschema-freehybrid - fields need to be configured prior to indexing, but relationships can be exploited at query time without pre-configurationschema-freeyes
Typing infopredefined data types such as float or datenonoyesyes
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 indexesnonoyesyes
SQL infoSupport of SQLClose to SQL99, but no user access control, stored procedures and host language bindings.nononoyes infothrough Apache Derby
APIs and other access methodsJavaScript APIHTTP REST
Proprietary protocol
RESTful HTTP APIAndroid
iOS
JavaScript API
RESTful HTTP API
JDBC
Kafka Connector
ODBC
proprietary key/value interface
Spark Connector
Supported programming languagesJavaScriptC
C++
Dart
JavaScript
Kotlin
Python
Rust
Scala
C#
Java
JavaScript
Python
Java
JavaScript
Objective-C
C
Java
Scala
Server-side scripts infoStored proceduresnononolimited functionality with using 'rules'
TriggersyesnoyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesnoneyes
Replication methods infoMethods for redundantly storing data on multiple nodesnoneyesyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononono
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneEventual ConsistencyImmediate ConsistencyEventual Consistency infoif the client is offline
Immediate Consistency infoif the client is online
Immediate Consistency
Foreign keys infoReferential integrityyesnoyesnoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayes infoonly for local storage and DOM-storagenoyesyesACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyes infoby using IndexedDB, SQL.JS or proprietary FileStorageyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnoyes
User concepts infoAccess controlnogranular access controls, API key management, content filtersyes, based on authentication and database rules

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More resources
AlaSQLCloudflare Workers KVCoveoFirebase Realtime DatabaseLeanXcale
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