DBMS > Cloudflare Workers KV vs. EventStoreDB vs. Lovefield vs. SAP Advantage Database Server

System Properties Comparison Cloudflare Workers KV vs. EventStoreDB vs. Lovefield vs. SAP Advantage Database Server

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Editorial information provided by DB-Engines
Name	Cloudflare Workers KV  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 global, low-latency, key-value store for applications on Cloudflare with exceptionally high read volumes and low-latency.	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 0.39 Rank #274   Overall #39   Key-value stores	Score 1.19 Rank #173   Overall #1   Event Stores	Score 0.33 Rank #286   Overall #131   Relational DBMS
Website	www.cloudflare.com/­developer-platform/­workers-kv	www.eventstore.com	google.github.io/­lovefield	www.sap.com/products/advantage-database-server.html
Technical documentation	developers.cloudflare.com/­kv/­api	developers.eventstore.com	github.com/­google/­lovefield/­blob/­master/­docs/­spec_index.md
Developer	Cloudflare	Event Store Limited	Google	Sybase, SAP
Initial release	2018	2012	2014	1993
Current release		21.2, February 2021	2.1.12, February 2017
License Commercial or Open Source	commercial	Open Source	Open Source Apache 2.0	commercial
Cloud-based only Only available as a cloud service	yes	no	no	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language			JavaScript
Server operating systems	hosted	Linux Windows	server-less, requires a JavaScript environment (browser, Node.js) tested with Chrome, Firefox, IE, Safari	Linux Windows
Data scheme	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.	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	HTTP REST Proprietary protocol			.NET Client API ADO.NET JDBC ODBC OLE DB
Supported programming languages	C C++ Dart JavaScript Kotlin Python Rust Scala		JavaScript	Delphi Perl PHP
Server-side scripts Stored procedures	no		no	yes
Triggers	no		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	yes		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	no		ACID	ACID
Concurrency Support for concurrent manipulation of data	yes		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.	no		yes using MemoryDB	no caching of (temporary) tables can be configured
User concepts Access control			no	fine grained access rights according to SQL-standard
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More resources
	Cloudflare Workers KV	EventStoreDB	Lovefield	SAP Advantage Database Server former name: Sybase ADS
Recent citations in the news	Cloudflare updates Workers platform with Python support, event notifications, and improved local development ... 3 April 2024, DevClass Cloudflare recovers from service outage after power failure at core North American data center 3 November 2023, DatacenterDynamics Cloudflare dashboard, API service feeling poorly due to datacenter power snafu 2 November 2023, The Register Cloudflare is (still) struggling with another outage - here's what to know 3 November 2023, ZDNet Anonymous Sudan DDoS attack hits Cloudflare website 13 November 2023, SC Media 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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