DBMS > Dragonfly vs. EventStoreDB vs. Lovefield vs. SAP Advantage Database Server

System Properties Comparison Dragonfly vs. EventStoreDB vs. Lovefield vs. SAP Advantage Database Server

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Editorial information provided by DB-Engines
Name	Dragonfly  Xexclude from comparison	EventStoreDB  Xexclude from comparison	Lovefield  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	A drop-in Redis replacement that scales vertically to support millions of operations per second and terabyte sized workloads, all on a single instance	Industrial-strength, open-source database solution built from the ground up for event sourcing.	Embeddable relational database for web apps written in pure JavaScript	Low-cost RDBMS with access to ISAM and FoxPro data structures
Primary database model	Key-value store	Event Store	Relational DBMS	Relational DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.49 Rank #261   Overall #38   Key-value stores	Score 1.19 Rank #173   Overall #1   Event Stores	Score 0.33 Rank #286   Overall #131   Relational DBMS
Website	github.com/­dragonflydb/­dragonfly www.dragonflydb.io	www.eventstore.com	google.github.io/­lovefield	www.sap.com/products/advantage-database-server.html
Technical documentation	www.dragonflydb.io/­docs	developers.eventstore.com	github.com/­google/­lovefield/­blob/­master/­docs/­spec_index.md
Developer	DragonflyDB team and community contributors	Event Store Limited	Google	Sybase, SAP
Initial release	2023	2012	2014	1993
Current release	1.0, March 2023	21.2, February 2021	2.1.12, February 2017
License Commercial or Open Source	Open Source BSL 1.1	Open Source	Open Source Apache 2.0	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++		JavaScript
Server operating systems	Linux	Linux Windows	server-less, requires a JavaScript environment (browser, Node.js) tested with Chrome, Firefox, IE, Safari	Linux Windows
Data scheme	scheme-free		yes	yes
Typing predefined data types such as float or date	strings, hashes, lists, sets, sorted sets, bit arrays		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.	no		no	no
Secondary indexes	no		yes	yes
SQL Support of SQL	no		SQL-like query language via JavaScript builder pattern	yes
APIs and other access methods	Proprietary protocol RESP - REdis Serialization Protocol			.NET Client API ADO.NET JDBC ODBC OLE DB
Supported programming languages	C C# C++ Clojure D Dart Elixir Erlang Go Haskell Java JavaScript (Node.js) Lisp Lua Objective-C Perl PHP Python R Ruby Rust Scala Swift Tcl		JavaScript	Delphi Perl PHP
Server-side scripts Stored procedures	Lua		no	yes
Triggers	publish/subscribe channels provide some trigger functionality		Using read-only observers	yes
Partitioning methods Methods for storing different data on different nodes			none	none
Replication methods Methods for redundantly storing data on multiple nodes	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
Consistency concepts Methods to ensure consistency in a distributed system	Eventual Consistency			Immediate Consistency
Foreign keys Referential integrity	no		yes	yes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	Atomic execution of command blocks and scripts		ACID	ACID
Concurrency Support for concurrent manipulation of data	yes, strict serializability by the server		yes	yes
Durability Support for making data persistent	yes		yes, by using IndexedDB or the cloud service Firebase Realtime Database	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	yes		yes using MemoryDB	no caching of (temporary) tables can be configured
User concepts Access control	Password-based authentication		no	fine grained access rights according to SQL-standard
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More resources
	Dragonfly	EventStoreDB	Lovefield	SAP Advantage Database Server former name: Sybase ADS
Recent citations in the news	DragonflyDB Announces $21m in New Funding and General Availability 21 March 2023, businesswire.com DragonflyDB reels in $21M for its speedy in-memory database 21 March 2023, SiliconANGLE News DragonflyDB Raises $21M in Funding 21 March 2023, FinSMEs Dragonfly 1.0 Released For What Claims To Be The World's Fastest In-Memory Data Store 20 March 2023, Phoronix Intel Linux Kernel Optimizations Show Huge Benefit For High Core Count Servers 29 March 2023, Phoronix 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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