DBMS > BigObject vs. EJDB vs. Microsoft Azure Data Explorer vs. Valentina Server

System Properties Comparison BigObject vs. EJDB vs. Microsoft Azure Data Explorer vs. Valentina Server

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Editorial information provided by DB-Engines
Name	BigObject  Xexclude from comparison	EJDB  Xexclude from comparison	Microsoft Azure Data Explorer  Xexclude from comparison	Valentina Server  Xexclude from comparison
Description	Analytic DBMS for real-time computations and queries	Embeddable document-store database library with JSON representation of queries (in MongoDB style)	Fully managed big data interactive analytics platform	Object-relational database and reports server
Primary database model	Relational DBMS a hierachical model (tree) can be imposed	Document store	Relational DBMS column oriented	Relational DBMS
Secondary database models			Document store If 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 this 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) Spatial DBMS Search engine support 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 see docs.microsoft.com/­en-us/­azure/­data-explorer/­time-series-analysis
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.19 Rank #329   Overall #146   Relational DBMS	Score 0.31 Rank #296   Overall #44   Document stores	Score 3.80 Rank #81   Overall #43   Relational DBMS	Score 0.21 Rank #325   Overall #144   Relational DBMS
Website	bigobject.io	github.com/­Softmotions/­ejdb	azure.microsoft.com/­services/­data-explorer	www.valentina-db.net
Technical documentation	docs.bigobject.io	github.com/­Softmotions/­ejdb/­blob/­master/­README.md	docs.microsoft.com/­en-us/­azure/­data-explorer	valentina-db.com/­docs/­dokuwiki/­v5/­doku.php
Developer	BigObject, Inc.	Softmotions	Microsoft	Paradigma Software
Initial release	2015	2012	2019	1999
Current release			cloud service with continuous releases	5.7.5
License Commercial or Open Source	commercial free community edition available	Open Source GPLv2	commercial	commercial
Cloud-based only Only available as a cloud service	no	no	yes	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language		C
Server operating systems	Linux distributed as a docker-image OS X distributed as a docker-image (boot2docker) Windows distributed as a docker-image (boot2docker)	server-less	hosted	Linux OS X Windows
Data scheme	yes	schema-free	Fixed schema with schema-less datatypes (dynamic)	yes
Typing predefined data types such as float or date	yes	yes string, integer, double, bool, date, object_id	yes bool, datetime, dynamic, guid, int, long, real, string, timespan, double: docs.microsoft.com/­en-us/­azure/­kusto/­query/­scalar-data-types	yes
XML support Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.	no		yes
Secondary indexes	yes	no	all fields are automatically indexed	yes
SQL Support of SQL	SQL-like DML and DDL statements	no	Kusto Query Language (KQL), SQL subset	yes
APIs and other access methods	fluentd ODBC RESTful HTTP API	in-process shared library	Microsoft SQL Server communication protocol (MS-TDS) RESTful HTTP API	ODBC
Supported programming languages		Actionscript C C# C++ Go Java JavaScript (Node.js) Lua Objective-C Pike Python Ruby	.Net Go Java JavaScript (Node.js) PowerShell Python R	.Net C C# C++ Objective-C PHP Ruby Visual Basic Visual Basic.NET
Server-side scripts Stored procedures	Lua	no	Yes, possible languages: KQL, Python, R	yes
Triggers	no	no	yes see docs.microsoft.com/­en-us/­azure/­kusto/­management/­updatepolicy	yes
Partitioning methods Methods for storing different data on different nodes	none	none	Sharding Implicit feature of the cloud service
Replication methods Methods for redundantly storing data on multiple nodes	none	none	yes Implicit feature of the cloud service. Replication either local, cross-facility or geo-redundant.
MapReduce Offers an API for user-defined Map/Reduce methods	no	no	Spark connector (open source): github.com/­Azure/­azure-kusto-spark	no
Consistency concepts Methods to ensure consistency in a distributed system	none		Eventual Consistency Immediate Consistency
Foreign keys Referential integrity	yes automatically between fact table and dimension tables	no typically not needed, however similar functionality with collection joins possible	no	yes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	no	no	no
Concurrency Support for concurrent manipulation of data	yes Read/write lock on objects (tables, trees)	yes Read/Write Locking	yes
Durability Support for making data persistent	yes	yes	yes	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	yes		no	yes
User concepts Access control	no	no	Azure Active Directory Authentication	fine grained access rights according to SQL-standard
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More resources
	BigObject	EJDB	Microsoft Azure Data Explorer	Valentina Server
Recent citations in the news			We’re retiring Azure Time Series Insights on 7 July 2024 – transition to Azure Data Explorer | Azure updates 31 May 2024, Microsoft Update records in a Kusto Database (public preview) | Azure updates 20 February 2024, Microsoft Public Preview: Azure Data Explorer connector for Apache Flink | Azure updates 8 January 2024, Microsoft Announcing General Availability to migrate Virtual Network injected Azure Data Explorer Cluster to Private Endpoints ... 5 February 2024, Microsoft Migration of Azure Virtual Network injected Azure Data Explorer cluster to Private Endpoints | Azure updates 4 December 2023, Microsoft provided by Google News	A Look at Valentina — SitePoint 18 April 2014, SitePoint MySQL GUI Tools for Windows and Ubuntu/Linux: Top 8 free or open source 7 December 2018, H2S Media provided by Google News

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