DBMS > 4D vs. Alibaba Cloud AnalyticDB for PostgreSQL vs. Alibaba Cloud TSDB vs. EJDB vs. SAP Advantage Database Server

System Properties Comparison 4D vs. Alibaba Cloud AnalyticDB for PostgreSQL vs. Alibaba Cloud TSDB vs. EJDB vs. SAP Advantage Database Server

Editorial information provided by DB-Engines
Name	4D former name: 4th Dimension  Xexclude from comparison	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB  Xexclude from comparison	Alibaba Cloud TSDB  Xexclude from comparison	EJDB  Xexclude from comparison	SAP Advantage Database Server former name: Sybase ADS  Xexclude from comparison
					SAP Advantage Database Server seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.
Description	Application development environment with integrated database management system	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	Embeddable document-store database library with JSON representation of queries (in MongoDB style)	Low-cost RDBMS with access to ISAM and FoxPro data structures
Primary database model	Relational DBMS	Relational DBMS	Time Series DBMS	Document store	Relational DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 2.47 Rank #110   Overall #54   Relational DBMS	Score 0.76 Rank #220   Overall #102   Relational DBMS	Score 0.29 Rank #301   Overall #26   Time Series DBMS	Score 0.31 Rank #296   Overall #44   Document stores
Website	www.4d.com	www.alibabacloud.com/­product/­hybriddb-postgresql	www.alibabacloud.com/­product/­hitsdb	github.com/­Softmotions/­ejdb	www.sap.com/products/advantage-database-server.html
Technical documentation	developer.4d.com	www.alibabacloud.com/­help/­en/­analyticdb-for-postgresql/­latest/­product-introduction-overview	www.alibabacloud.com/­help/­en/­time-series-database/­latest/­what-is-tsdb	github.com/­Softmotions/­ejdb/­blob/­master/­README.md
Developer	4D, Inc	Alibaba / Pivotal Software Inc. / PostgreSQL Global Development Group	Alibaba	Softmotions	Sybase, SAP
Initial release	1984	2016		2012	1993
Current release	v20, April 2023
License Commercial or Open Source	commercial	commercial	commercial	Open Source GPLv2	commercial
Cloud-based only Only available as a cloud service	no	yes	yes	no	no
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Implementation language				C
Server operating systems	OS X Windows	hosted	hosted	server-less	Linux Windows
Data scheme	yes	yes	schema-free	schema-free	yes
Typing predefined data types such as float or date	yes	yes	Numeric data and Strings	yes string, integer, double, bool, date, object_id	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	yes	no		no
Secondary indexes	yes	yes	no	no	yes
SQL Support of SQL	yes close to SQL 92	yes	no	no	yes
APIs and other access methods	ODBC RESTful HTTP API by using 4D Mobile SOAP webservices	JDBC ODBC	HTTP REST	in-process shared library	.NET Client API ADO.NET JDBC ODBC OLE DB
Supported programming languages	4D proprietary IDE PHP	C Java Perl Python R	Java	Actionscript C C# C++ Go Java JavaScript (Node.js) Lua Objective-C Pike Python Ruby	Delphi Perl PHP
Server-side scripts Stored procedures	yes	yes	no	no	yes
Triggers	yes	yes	no	no	yes
Partitioning methods Methods for storing different data on different nodes	none	Sharding Implicit feature of the cloud service		none	none
Replication methods Methods for redundantly storing data on multiple nodes	Multi-source replication	yes Implicit feature of the cloud service		none	Multi-source replication CONFLICT Trigger to resolve replication conflicts Source-replica replication
MapReduce Offers an API for user-defined Map/Reduce methods	no	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	yes	no	no typically not needed, however similar functionality with collection joins possible	yes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID	ACID	no	no	ACID
Concurrency Support for concurrent manipulation of data	yes	yes	yes	yes Read/Write Locking	yes
Durability Support for making data persistent	yes	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		no caching of (temporary) tables can be configured
User concepts Access control	Users and groups	fine grained access rights according to SQL-standard	Access managed on TSDB instance level	no	fine grained access rights according to SQL-standard
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More resources
	4D former name: 4th Dimension	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB	Alibaba Cloud TSDB	EJDB	SAP Advantage Database Server former name: Sybase ADS
DB-Engines blog posts	MySQL, PostgreSQL and Redis are the winners of the March ranking 2 March 2016, Paul Andlinger show all
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			SAP Announces Q3 2023 Results: Asia Pacific and Japan View 19 October 2023, SAP News provided by Google News

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