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DBMS > Cassandra vs. EsgynDB vs. Microsoft Azure Data Explorer vs. NSDb vs. Weaviate

System Properties Comparison Cassandra vs. EsgynDB vs. Microsoft Azure Data Explorer vs. NSDb vs. Weaviate

Editorial information provided by DB-Engines
NameCassandra  Xexclude from comparisonEsgynDB  Xexclude from comparisonMicrosoft Azure Data Explorer  Xexclude from comparisonNSDb  Xexclude from comparisonWeaviate  Xexclude from comparison
DescriptionWide-column store based on ideas of BigTable and DynamoDB infoOptimized for write accessEnterprise-class SQL-on-Hadoop solution, powered by Apache TrafodionFully managed big data interactive analytics platformScalable, High-performance Time Series DBMS designed for Real-time Analytics on top of KubernetesA cloud-native, realtime vector search engine integrating scalable machine learning models
Primary database modelWide column storeRelational DBMSRelational DBMS infocolumn orientedTime Series DBMSSearch engine
Secondary database modelsDocument store infoIf a column is of type dynamic docs.microsoft.com/­en-us/­azure/­kusto/­query/­scalar-data-types/­dynamic then it's possible to add arbitrary JSON documents in this cell
Event Store infothis is the general usage pattern at Microsoft. Billing, Logs, Telemetry events are stored in ADX and the state of an individual entity is defined by the arg_max(timestamps)
Search engine infosupport for complex search expressions docs.microsoft.com/­en-us/­azure/­kusto/­query/­parseoperator FTS, Geospatial docs.microsoft.com/­en-us/­azure/­kusto/­query/­geo-point-to-geohash-function distributed search -> ADX acts as a distributed search engine
Time Series DBMS infosee docs.microsoft.com/­en-us/­azure/­data-explorer/­time-series-analysis
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score123.55
Rank#11  Overall
#1  Wide column stores
Score0.23
Rank#281  Overall
#130  Relational DBMS
Score6.59
Rank#60  Overall
#34  Relational DBMS
Score0.00
Rank#351  Overall
#36  Time Series DBMS
Score0.16
Rank#296  Overall
#16  Search engines
Websitecassandra.apache.orgwww.esgyn.cnazure.microsoft.com/­services/­data-explorernsdb.iogithub.com/­semi-technologies/­weaviate
www.semi.technology/­solutions/­weaviate
Technical documentationcassandra.apache.org/­doc/­latestdocs.microsoft.com/­en-us/­azure/­data-explorernsdb.io/­Architecturewww.semi.technology/­developers/­weaviate/­current
DeveloperApache Software Foundation infoApache top level project, originally developped by FacebookEsgynMicrosoftSeMI Technologies B.V.
Initial release20082015201920172017
Current release4.0.1, September 2021cloud service with continuous releases1.0.3, January 2021
License infoCommercial or Open SourceOpen Source infoApache version 2commercialcommercialOpen Source infoApache Version 2.0Open Source infocommercial license available with Weaviate Enterprise
Cloud-based only infoOnly available as a cloud servicenonoyesnono
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.
Implementation languageJavaC++, JavaJava, ScalaGo
Server operating systemsBSD
Linux
OS X
Windows
LinuxhostedLinux
macOS
Data schemeschema-freeyesFixed schema with schema-less datatypes (dynamic)yes, maps to GraphQL interface
Typing infopredefined data types such as float or dateyesyesyes infobool, datetime, dynamic, guid, int, long, real, string, timespan, double: docs.microsoft.com/­en-us/­azure/­kusto/­query/­scalar-data-typesyes: int, bigint, decimal, stringyes infostring, int, float, geo point, date, cross reference, fuzzy references
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.nonoyesnono
Secondary indexesrestricted infoonly equality queries, not always the best performing solutionyesall fields are automatically indexedall fields are automatically indexedyes infoall data objects are indexed in a semantic vector space (the Contextionary), all primitive fields are indexed
SQL infoSupport of SQLSQL-like SELECT, DML and DDL statements (CQL)yesKusto Query Language (KQL), SQL subsetSQL-like query languageGraphQL is used as query language
APIs and other access methodsProprietary protocol infoCQL (Cassandra Query Language, an SQL-like language)
Thrift
ADO.NET
JDBC
ODBC
Microsoft SQL Server communication protocol (MS-TDS)
RESTful HTTP API
gRPC
HTTP REST
WebSocket
GraphQL query language
RESTful HTTP/JSON API
Supported programming languagesC#
C++
Clojure
Erlang
Go
Haskell
Java
JavaScript infoNode.js
Perl
PHP
Python
Ruby
Scala
All languages supporting JDBC/ODBC/ADO.Net.Net
Go
Java
JavaScript (Node.js)
PowerShell
Python
R
Java
Scala
Server-side scripts infoStored proceduresnoJava Stored ProceduresYes, possible languages: KQL, Python, Rnono
Triggersyesnoyes infosee docs.microsoft.com/­en-us/­azure/­kusto/­management/­updatepolicyno
Partitioning methods infoMethods for storing different data on different nodesSharding infono "single point of failure"ShardingSharding infoImplicit feature of the cloud serviceShardingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor infoRepresentation of geographical distribution of servers is possibleMulti-source replication between multi datacentersyes infoImplicit feature of the cloud service. Replication either local, cross-facility or geo-redundant.yes
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesyesnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Immediate Consistency infocan be individually decided for each write operation
Immediate ConsistencyEventual Consistency
Immediate Consistency
Eventual ConsistencyEventual Consistency
Foreign keys infoReferential integritynoyesnonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datano infoAtomicity and isolation are supported for single operationsACIDnonono
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes
Durability infoSupport for making data persistentyesyesyesUsing Apache Luceneyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nononono
User concepts infoAccess controlAccess rights for users can be defined per objectfine grained access rights according to SQL-standardAzure Active Directory AuthenticationOpenID Connect Discovery
More information provided by the system vendor
CassandraEsgynDBMicrosoft Azure Data ExplorerNSDbWeaviate
Specific characteristicsApache Cassandra is the leading NoSQL, distributed database management system, well...
» more
Azure Data Explorer is a fast and highly scalable data exploration service for log...
» more
Competitive advantagesNo single point of failure ensures 100% availability . Operational simplicity for...
» more
Kusto Query Language (innovative query language, optimized for high performance data...
» more
Typical application scenariosInternet of Things (IOT), fraud detection applications, recommendation engines, product...
» more
IoT applications IoT devices generate billions of sensor readings. Normalizing and...
» more
Key customersApple, Netflix, Uber, ING,, Intuit,Fidelity, NY Times, Outbrain, BazaarVoice, Best...
» more
Microsoft, DocuSign, Taboola, Bosch, Siemens Healthineers, Bühler, Ecolab, Zoomd
» more
Market metricsCassandra is used by 40% of the Fortune 100.
» more
Azure Data Explorer is the data service for Azure Monitor, Azure Time Series Insights,...
» more
Licensing and pricing modelsApache license  Pricing for commercial distributions provided by DataStax and available...
» more
News

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