DBMS > Alibaba Cloud AnalyticDB for PostgreSQL vs. ArcadeDB vs. EsgynDB vs. Microsoft Azure Data Explorer

System Properties Comparison Alibaba Cloud AnalyticDB for PostgreSQL vs. ArcadeDB vs. EsgynDB vs. Microsoft Azure Data Explorer

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Editorial information provided by DB-Engines
Name	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB  Xexclude from comparison	ArcadeDB  Xexclude from comparison	EsgynDB  Xexclude from comparison	Microsoft Azure Data Explorer  Xexclude from comparison
Description	An online MPP (Massively Parallel Processing) data warehousing service based on Greenplum	Fast and scalable multi-model DBMS, originally forked from OrientDB but most of the code has been rewritten	Enterprise-class SQL-on-Hadoop solution, powered by Apache Trafodion	Fully managed big data interactive analytics platform
Primary database model	Relational DBMS	Document store Graph DBMS Key-value store Time Series DBMS in next version	Relational DBMS	Relational DBMS column oriented
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 0.76 Rank #220   Overall #102   Relational DBMS	Score 0.10 Rank #358   Overall #48   Document stores #38   Graph DBMS #52   Key-value stores #35   Time Series DBMS	Score 0.25 Rank #312   Overall #138   Relational DBMS	Score 3.80 Rank #81   Overall #43   Relational DBMS
Website	www.alibabacloud.com/­product/­hybriddb-postgresql	arcadedb.com	www.esgyn.cn	azure.microsoft.com/­services/­data-explorer
Technical documentation	www.alibabacloud.com/­help/­en/­analyticdb-for-postgresql/­latest/­product-introduction-overview	docs.arcadedb.com		docs.microsoft.com/­en-us/­azure/­data-explorer
Developer	Alibaba / Pivotal Software Inc. / PostgreSQL Global Development Group	Arcade Data	Esgyn	Microsoft
Initial release	2016	2021	2015	2019
Current release		September 2021		cloud service with continuous releases
License Commercial or Open Source	commercial	Open Source Apache Version 2.0	commercial	commercial
Cloud-based only Only available as a cloud service	yes	no	no	yes
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language		Java	C++, Java
Server operating systems	hosted	All OS with a Java VM	Linux	hosted
Data scheme	yes	schema-free	yes	Fixed schema with schema-less datatypes (dynamic)
Typing predefined data types such as float or date	yes	yes	yes	yes bool, datetime, dynamic, guid, int, long, real, string, timespan, double: docs.microsoft.com/­en-us/­azure/­kusto/­query/­scalar-data-types
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.	yes	no	no	yes
Secondary indexes	yes	yes	yes	all fields are automatically indexed
SQL Support of SQL	yes	SQL-like query language, no joins	yes	Kusto Query Language (KQL), SQL subset
APIs and other access methods	JDBC ODBC	JDBC MongoDB API OpenCypher PostgreSQL wire protocol Redis API RESTful HTTP/JSON API TinkerPop Gremlin	ADO.NET JDBC ODBC	Microsoft SQL Server communication protocol (MS-TDS) RESTful HTTP API
Supported programming languages	C Java Perl Python R	Java	All languages supporting JDBC/ODBC/ADO.Net	.Net Go Java JavaScript (Node.js) PowerShell Python R
Server-side scripts Stored procedures	yes		Java Stored Procedures	Yes, possible languages: KQL, Python, R
Triggers	yes		no	yes see docs.microsoft.com/­en-us/­azure/­kusto/­management/­updatepolicy
Partitioning methods Methods for storing different data on different nodes	Sharding Implicit feature of the cloud service		Sharding	Sharding Implicit feature of the cloud service
Replication methods Methods for redundantly storing data on multiple nodes	yes Implicit feature of the cloud service	Source-replica replication	Multi-source replication between multi datacenters	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	yes	Spark connector (open source): github.com/­Azure/­azure-kusto-spark
Consistency concepts Methods to ensure consistency in a distributed system	Immediate Consistency	Immediate Consistency	Immediate Consistency	Eventual Consistency Immediate Consistency
Foreign keys Referential integrity	yes	yes relationship in graphs	yes	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID	ACID	ACID	no
Concurrency Support for concurrent manipulation of data	yes	yes	yes	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.	no		no	no
User concepts Access control	fine grained access rights according to SQL-standard		fine grained access rights according to SQL-standard	Azure Active Directory Authentication
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More resources
	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB	ArcadeDB	EsgynDB	Microsoft Azure Data Explorer
Recent citations in the news	Two Critical Flaws Found in Alibaba Cloud's PostgreSQL Databases 20 April 2023, The Hacker News Accidental ‘write’ Permissions In Alibaba PostgreSQL Let Attackers Access Sensitive Data 22 April 2023, GBHackers Two critical vulnerabilities spotted in Alibaba Cloud's PostgreSQL databases 21 April 2023, TEISS Alibaba Cloud to spur AI innovation with upcoming Singapore hackathon in March | KrASIA 21 February 2024, KrASIA Experts disclosed two critical flaws in Alibaba cloud database services 20 April 2023, Security Affairs provided by Google 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 New Features for graph-match KQL Operator: Enhanced Pattern Matching and Cycle Control | Azure updates 24 January 2024, Microsoft provided by Google News

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