DBMS > OpenQM vs. Oracle Berkeley DB vs. Sadas Engine vs. SAP Advantage Database Server

System Properties Comparison OpenQM vs. Oracle Berkeley DB vs. Sadas Engine vs. SAP Advantage Database Server

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Editorial information provided by DB-Engines
Name	OpenQM also called QM  Xexclude from comparison	Oracle Berkeley DB  Xexclude from comparison	Sadas Engine  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	QpenQM is a high-performance, self-tuning, multi-value DBMS	Widely used in-process key-value store	SADAS Engine is a columnar DBMS specifically designed for high performance in data warehouse environments	Low-cost RDBMS with access to ISAM and FoxPro data structures
Primary database model	Multivalue DBMS	Key-value store supports sorted and unsorted key sets Native XML DBMS in the Oracle Berkeley DB XML version	Relational DBMS	Relational DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.34 Rank #284   Overall #10   Multivalue DBMS	Score 2.01 Rank #126   Overall #21   Key-value stores #3   Native XML DBMS	Score 0.07 Rank #373   Overall #157   Relational DBMS
Website	www.rocketsoftware.com/­products/­rocket-multivalue-application-development-platform/­rocket-open-qm	www.oracle.com/­database/­technologies/­related/­berkeleydb.html	www.sadasengine.com	www.sap.com/products/advantage-database-server.html
Technical documentation		docs.oracle.com/­cd/­E17076_05/­html/­index.html	www.sadasengine.com/­en/­sadas-engine-download-free-trial-and-documentation/­#documentation
Developer	Rocket Software, originally Martin Phillips	Oracle originally developed by Sleepycat, which was acquired by Oracle	SADAS s.r.l.	Sybase, SAP
Initial release	1993	1994	2006	1993
Current release	3.4-12	18.1.40, May 2020	8.0
License Commercial or Open Source	Open Source GPLv2, extended commercial license available	Open Source commercial license available	commercial free trial version available	commercial
Cloud-based only Only available as a cloud service	no	no	no	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language		C, Java, C++ (depending on the Berkeley DB edition)	C++
Server operating systems	AIX FreeBSD Linux macOS Raspberry Pi Solaris Windows	AIX Android FreeBSD iOS Linux OS X Solaris VxWorks Windows	AIX Linux Windows	Linux Windows
Data scheme	yes with some exceptions	schema-free	yes	yes
Typing predefined data types such as float or date		no	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	yes only with the Berkeley DB XML edition	no	no
Secondary indexes	yes	yes	yes	yes
SQL Support of SQL	no	yes SQL interfaced based on SQLite is available	yes	yes
APIs and other access methods			JDBC ODBC Proprietary protocol	.NET Client API ADO.NET JDBC ODBC OLE DB
Supported programming languages	.Net Basic C Java Objective C PHP Python	.Net Figaro is a .Net framework assembly that extends Berkeley DB XML into an embeddable database engine for .NET others Third-party libraries to manipulate Berkeley DB files are available for many languages C C# C++ Java JavaScript (Node.js) 3rd party binding Perl Python Tcl	.Net C C# C++ Groovy Java PHP Python	Delphi Perl PHP
Server-side scripts Stored procedures	yes	no	no	yes
Triggers	yes	yes only for the SQL API	no	yes
Partitioning methods Methods for storing different data on different nodes	yes	none	horizontal partitioning	none
Replication methods Methods for redundantly storing data on multiple nodes	yes	Source-replica replication	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
Consistency concepts Methods to ensure consistency in a distributed system	Immediate Consistency		Immediate Consistency	Immediate Consistency
Foreign keys Referential integrity	no	no	yes	yes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID	ACID		ACID
Concurrency Support for concurrent manipulation of data	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.		yes	yes managed by 'Learn by Usage'	no caching of (temporary) tables can be configured
User concepts Access control	Access rights can be defined down to the item level	no	Access rights for users, groups and roles according to SQL-standard	fine grained access rights according to SQL-standard
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More resources
	OpenQM also called QM	Oracle Berkeley DB	Sadas Engine	SAP Advantage Database Server former name: Sybase ADS
Recent citations in the news		Margo Seltzer Named ACM Athena Lecturer for Technical and Mentoring Contributions 26 April 2023, HPCwire ACM recognizes far-reaching technical achievements with special awards 26 May 2021, EurekAlert Margo I. Seltzer | Berkman Klein Center 18 August 2020, Berkman Klein Center Database Trends Report: SQL Beats NoSQL, MySQL Most Popular -- ADTmag 5 March 2019, ADT Magazine Oracle buys Sleepycat Software 14 February 2006, MarketWatch 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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