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DBMS > Blueflood vs. Cassandra vs. ScyllaDB vs. SQL.JS vs. WakandaDB

System Properties Comparison Blueflood vs. Cassandra vs. ScyllaDB vs. SQL.JS vs. WakandaDB

Editorial information provided by DB-Engines
NameBlueflood  Xexclude from comparisonCassandra  Xexclude from comparisonScyllaDB  Xexclude from comparisonSQL.JS  Xexclude from comparisonWakandaDB  Xexclude from comparison
DescriptionScalable TimeSeries DBMS based on CassandraWide-column store based on ideas of BigTable and DynamoDB infoOptimized for write accessCassandra and DynamoDB compatible wide column storePort of SQLite to JavaScriptWakandaDB is embedded in a server that provides a REST API and a server-side javascript engine to access data
Primary database modelTime Series DBMSWide column storeWide column storeRelational DBMSObject oriented DBMS
Secondary database modelsVector DBMS infostarting with release V5Key-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.13
Rank#346  Overall
#33  Time Series DBMS
Score98.83
Rank#12  Overall
#1  Wide column stores
Score4.08
Rank#76  Overall
#5  Wide column stores
Score0.63
Rank#241  Overall
#112  Relational DBMS
Score0.10
Rank#356  Overall
#16  Object oriented DBMS
Websiteblueflood.iocassandra.apache.orgwww.scylladb.comsql.js.orgwakanda.github.io
Technical documentationgithub.com/­rax-maas/­blueflood/­wikicassandra.apache.org/­doc/­latestdocs.scylladb.comsql.js.org/­documentation/­index.htmlwakanda.github.io/­doc
DeveloperRackspaceApache Software Foundation infoApache top level project, originally developped by FacebookScyllaDBAlon Zakai infoenhancements implemented by othersWakanda SAS
Initial release20132008201520122012
Current release4.1.3, July 2023ScyllaDB Open Source 5.4.1, January 20242.7.0 (April 29, 2019), April 2019
License infoCommercial or Open SourceOpen Source infoApache 2.0Open Source infoApache version 2Open Source infoOpen Source (AGPL), commercial license availableOpen SourceOpen Source infoAGPLv3, extended commercial license available
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Astra DB: Multi-cloud DBaaS built on Apache Cassandra.Scylla Cloud: Create real-time applications that run at global scale with Scylla Cloud, the industry’s most powerful NoSQL DBaaS
Implementation languageJavaJavaC++JavaScriptC++, JavaScript
Server operating systemsLinux
OS X
BSD
Linux
OS X
Windows
Linuxserver-less, requires a JavaScript environment (browser, Node.js)Linux
OS X
Windows
Data schemepredefined schemeschema-freeschema-freeyesyes
Typing infopredefined data types such as float or dateyesyesyesyesyes
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.nonononono
Secondary indexesnorestricted infoonly equality queries, not always the best performing solutionyes infocluster global secondary indices
SQL infoSupport of SQLnoSQL-like SELECT, DML and DDL statements (CQL)SQL-like DML and DDL statements (CQL)yes infoSQL-92 is not fully supportedno
APIs and other access methodsHTTP RESTProprietary protocol infoCQL (Cassandra Query Language, an SQL-like language)
Thrift
Proprietary protocol (CQL) infocompatible with CQL (Cassandra Query Language, an SQL-like language)
RESTful HTTP API (DynamoDB compatible)
Thrift
JavaScript APIRESTful HTTP API
Supported programming languagesC#
C++
Clojure
Erlang
Go
Haskell
Java
JavaScript infoNode.js
Perl
PHP
Python
Ruby
Scala
For CQL interface: C#, C++, Clojure, Erlang, Go, Haskell, Java, JavaScript, Node.js, Perl, PHP, Python, Ruby, Rust, Scala
For DynamoDB interface: .Net, ColdFusion, Erlang, Groovy, Java, JavaScript, Perl, PHP, Python, Ruby
JavaScriptJavaScript
Server-side scripts infoStored proceduresnonoyes, Luanoyes
Triggersnoyesnonoyes
Partitioning methods infoMethods for storing different data on different nodesSharding infobased on CassandraSharding infono "single point of failure"Shardingnonenone
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor infobased on Cassandraselectable replication factor infoRepresentation of geographical distribution of servers is possibleselectable replication factor infoRepresentation of geographical distribution of servers is possiblenonenone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency infobased on Cassandra
Immediate Consistency infobased on Cassandra
Eventual Consistency
Immediate Consistency infocan be individually decided for each write operation
Eventual Consistency
Tunable Consistency infocan be individually decided for each write operation
noneImmediate Consistency
Foreign keys infoReferential integritynononoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanono infoAtomicity and isolation are supported for single operationsno infoAtomicity and isolation are supported for single operationsACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesyesno infoexcept by serializing a db to a fileyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nonoyes infoin-memory tablesyesno
User concepts infoAccess controlnoAccess rights for users can be defined per objectAccess rights for users can be defined per objectnoyes
More information provided by the system vendor
BluefloodCassandraScyllaDBSQL.JSWakandaDB
Specific characteristicsApache Cassandra is the leading NoSQL, distributed database management system, well...
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ScyllaDB is engineered to deliver predictable performance at scale. It’s adopted...
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Competitive advantagesNo single point of failure ensures 100% availability . Operational simplicity for...
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Highly-performant (efficiently utilizes full resources of a node and network; millions...
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Typical application scenariosInternet of Things (IOT), fraud detection applications, recommendation engines, product...
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ScyllaDB is ideal for applications that require high throughput and low latency at...
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Key customersApple, Netflix, Uber, ING,, Intuit,Fidelity, NY Times, Outbrain, BazaarVoice, Best...
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Discord, Epic Games, Expedia, Zillow, Comcast, Disney+ Hotstar, Samsung, ShareChat,...
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Market metricsCassandra is used by 40% of the Fortune 100.
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ScyllaDB typically offers ~75% total cost of ownership savings, with ~5X higher throughput...
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Licensing and pricing modelsApache license  Pricing for commercial distributions provided by DataStax and available...
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ScyllaDB Open Source - free open source software (AGPL) ScyllaDB Enterprise - subscription-based...
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