DBMS > Alibaba Cloud AnalyticDB for PostgreSQL vs. Microsoft Azure Synapse Analytics vs. Postgres-XL vs. VelocityDB

System Properties Comparison Alibaba Cloud AnalyticDB for PostgreSQL vs. Microsoft Azure Synapse Analytics vs. Postgres-XL vs. VelocityDB

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Editorial information provided by DB-Engines
Name	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB  Xexclude from comparison	Microsoft Azure Synapse Analytics previously named Azure SQL Data Warehouse  Xexclude from comparison	Postgres-XL  Xexclude from comparison	VelocityDB  Xexclude from comparison
Description	An online MPP (Massively Parallel Processing) data warehousing service based on Greenplum	Elastic, large scale data warehouse service leveraging the broad eco-system of SQL Server	Based on PostgreSQL enhanced with MPP and write-scale-out cluster features	A .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database model	Relational DBMS	Relational DBMS	Relational DBMS	Graph DBMS Object oriented DBMS
Secondary database models			Document store Spatial DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.76 Rank #220   Overall #102   Relational DBMS	Score 19.93 Rank #31   Overall #19   Relational DBMS	Score 0.53 Rank #254   Overall #117   Relational DBMS	Score 0.11 Rank #354   Overall #37   Graph DBMS #16   Object oriented DBMS
Website	www.alibabacloud.com/­product/­hybriddb-postgresql	azure.microsoft.com/­services/­synapse-analytics	www.postgres-xl.org	velocitydb.com
Technical documentation	www.alibabacloud.com/­help/­en/­analyticdb-for-postgresql/­latest/­product-introduction-overview	docs.microsoft.com/­azure/­synapse-analytics	www.postgres-xl.org/­documentation	velocitydb.com/­UserGuide
Developer	Alibaba / Pivotal Software Inc. / PostgreSQL Global Development Group	Microsoft		VelocityDB Inc
Initial release	2016	2016	2014 since 2012, originally named StormDB	2011
Current release			10 R1, October 2018	7.x
License Commercial or Open Source	commercial	commercial	Open Source Mozilla public license	commercial
Cloud-based only Only available as a cloud service	yes	yes	no	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language		C++	C	C#
Server operating systems	hosted	hosted	Linux macOS	Any that supports .NET
Data scheme	yes	yes	yes	yes
Typing predefined data types such as float or date	yes	yes	yes	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.	yes	no	yes XML type, but no XML query functionality	no
Secondary indexes	yes	yes	yes	yes
SQL Support of SQL	yes	yes	yes distributed, parallel query execution	no
APIs and other access methods	JDBC ODBC	ADO.NET JDBC ODBC	ADO.NET JDBC native C library ODBC streaming API for large objects	.Net
Supported programming languages	C Java Perl Python R	C# Java PHP	.Net C C++ Delphi Erlang Java JavaScript (Node.js) Perl PHP Python Tcl	.Net
Server-side scripts Stored procedures	yes	Transact SQL	user defined functions	no
Triggers	yes	no	yes	Callbacks are triggered when data changes
Partitioning methods Methods for storing different data on different nodes	Sharding Implicit feature of the cloud service	Sharding, horizontal partitioning	horizontal partitioning	Sharding
Replication methods Methods for redundantly storing data on multiple nodes	yes Implicit feature of the cloud service	yes
MapReduce Offers an API for user-defined Map/Reduce methods	no	no	no	no
Consistency concepts Methods to ensure consistency in a distributed system	Immediate Consistency	Immediate Consistency	Immediate Consistency	Immediate Consistency
Foreign keys Referential integrity	yes	no docs.microsoft.com/­en-us/­azure/­synapse-analytics/­sql-data-warehouse/­sql-data-warehouse-table-constraints	yes	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID	ACID	ACID MVCC	ACID
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	yes
User concepts Access control	fine grained access rights according to SQL-standard	yes	fine grained access rights according to SQL-standard	Based on Windows Authentication
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More resources
	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB	Microsoft Azure Synapse Analytics previously named Azure SQL Data Warehouse	Postgres-XL	VelocityDB
Recent citations in the news	Alibaba Cloud upgrades AnalyticDB with vector database engine 25 July 2023, CloudTech 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 ignites AI innovation in Singapore with recent hackathon | KrASIA 27 March 2024, KrASIA provided by Google News	General Available: Azure Synapse Runtime for Apache Spark 3.4 is now GA | Azure updates 8 April 2024, Microsoft Azure Synapse Runtime for Apache Spark 3.2 End of Support | Azure updates 22 March 2024, Microsoft Azure Synapse Analytics: Everything you need to know about Microsoft's cloud analytics platform 24 September 2023, DataScientest Migrate Microsoft Azure Synapse Analytics to Amazon Redshift using AWS SCT | Amazon Web Services 18 October 2023, AWS Blog Azure Synapse vs. Databricks: Data Platform Comparison 2024 26 March 2024, eWeek provided by Google News

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