DBMS > Alibaba Cloud AnalyticDB for PostgreSQL vs. Alibaba Cloud TSDB vs. BaseX vs. EJDB

System Properties Comparison Alibaba Cloud AnalyticDB for PostgreSQL vs. Alibaba Cloud TSDB vs. BaseX vs. EJDB

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Editorial information provided by DB-Engines
Name	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB  Xexclude from comparison	Alibaba Cloud TSDB  Xexclude from comparison	BaseX  Xexclude from comparison	EJDB  Xexclude from comparison
Description	An online MPP (Massively Parallel Processing) data warehousing service based on Greenplum	A stable, reliable, and cost-effective online high-performance time series database service	Light-weight Native XML DBMS with support for XQuery 3.0 and interactive GUI.	Embeddable document-store database library with JSON representation of queries (in MongoDB style)
Primary database model	Relational DBMS	Time Series DBMS	Native XML DBMS	Document store
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.76 Rank #220   Overall #102   Relational DBMS	Score 0.29 Rank #301   Overall #26   Time Series DBMS	Score 1.84 Rank #135   Overall #4   Native XML DBMS	Score 0.31 Rank #296   Overall #44   Document stores
Website	www.alibabacloud.com/­product/­hybriddb-postgresql	www.alibabacloud.com/­product/­hitsdb	basex.org	github.com/­Softmotions/­ejdb
Technical documentation	www.alibabacloud.com/­help/­en/­analyticdb-for-postgresql/­latest/­product-introduction-overview	www.alibabacloud.com/­help/­en/­time-series-database/­latest/­what-is-tsdb	docs.basex.org	github.com/­Softmotions/­ejdb/­blob/­master/­README.md
Developer	Alibaba / Pivotal Software Inc. / PostgreSQL Global Development Group	Alibaba	BaseX GmbH	Softmotions
Initial release	2016		2007	2012
Current release			10.7, August 2023
License Commercial or Open Source	commercial	commercial	Open Source BSD license	Open Source GPLv2
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			Java	C
Server operating systems	hosted	hosted	Linux OS X Windows	server-less
Data scheme	yes	schema-free	schema-free	schema-free
Typing predefined data types such as float or date	yes	Numeric data and Strings	no XQuery supports types	yes string, integer, double, bool, date, object_id
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
Secondary indexes	yes	no	yes	no
SQL Support of SQL	yes	no	no	no
APIs and other access methods	JDBC ODBC	HTTP REST	Java API RESTful HTTP API RESTXQ WebDAV XML:DB XQJ	in-process shared library
Supported programming languages	C Java Perl Python R	Java	Actionscript C C# Haskell Java JavaScript Node.js Lisp Perl PHP Python Qt Rebol Ruby Scala Visual Basic	Actionscript C C# C++ Go Java JavaScript (Node.js) Lua Objective-C Pike Python Ruby
Server-side scripts Stored procedures	yes	no	yes	no
Triggers	yes	no	yes via events	no
Partitioning methods Methods for storing different data on different nodes	Sharding Implicit feature of the cloud service		none	none
Replication methods Methods for redundantly storing data on multiple nodes	yes Implicit feature of the cloud service		none	none
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
Foreign keys Referential integrity	yes	no	no	no typically not needed, however similar functionality with collection joins possible
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID	no	multiple readers, single writer	no
Concurrency Support for concurrent manipulation of data	yes	yes	yes	yes Read/Write Locking
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
User concepts Access control	fine grained access rights according to SQL-standard	Access managed on TSDB instance level	Users with fine-grained authorization concept on 4 levels	no
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More resources
	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB	Alibaba Cloud TSDB	BaseX	EJDB
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 Two critical vulnerabilities spotted in Alibaba Cloud's PostgreSQL databases 21 April 2023, TEISS Experts disclosed two critical flaws in Alibaba cloud database services 20 April 2023, Security Affairs Alibaba Cloud to spur AI innovation with upcoming Singapore hackathon in March | KrASIA 21 February 2024, KrASIA provided by Google News		XML Injection Attacks: What to Know About XPath, XQuery, XXE & More 18 May 2022, Hashed Out by The SSL Store™ 9 Skills You Need to Become a Data Engineer 2 November 2022, KDnuggets provided by Google News

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