DBMS > 4D vs. Cloudflare Workers KV vs. Memcached

System Properties Comparison 4D vs. Cloudflare Workers KV vs. Memcached

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Editorial information provided by DB-Engines
Name	4D former name: 4th Dimension  Xexclude from comparison	Cloudflare Workers KV  Xexclude from comparison	Memcached  Xexclude from comparison
Description	Application development environment with integrated database management system	A global, low-latency, key-value store for applications on Cloudflare with exceptionally high read volumes and low-latency.	In-memory key-value store, originally intended for caching
Primary database model	Relational DBMS	Key-value store	Key-value store
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 2.83 Rank #106   Overall #55   Relational DBMS	Score 0.18 Rank #294   Overall #42   Key-value stores	Score 24.56 Rank #33   Overall #4   Key-value stores
Website	www.4d.com	www.cloudflare.com/­products/­workers-kv	www.memcached.org
Technical documentation	livedoc.4d.com	developers.cloudflare.com/­workers/­runtime-apis/­kv	github.com/­memcached/­memcached/­wiki
Developer	4D, Inc	Cloudflare	Danga Interactive originally developed by Brad Fitzpatrick for LiveJournal
Initial release	1984	2018	2003
Current release	v18 R5, January 2021		1.6.15, March 2022
License Commercial or Open Source	commercial	commercial	Open Source BSD license
Cloud-based only Only available as a cloud service	no	yes	no
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Implementation language			C
Server operating systems	OS X Windows	hosted	FreeBSD Linux OS X Unix Windows
Data scheme	yes	schema-free	schema-free
Typing predefined data types such as float or date	yes	no	no
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	no
SQL Support of SQL	yes close to SQL 92	no	no
APIs and other access methods	ODBC RESTful HTTP API by using 4D Mobile SOAP webservices	HTTP REST Proprietary protocol	Proprietary protocol
Supported programming languages	4D proprietary IDE PHP	C C++ Dart JavaScript Kotlin Python Rust Scala	.Net C C++ ColdFusion Erlang Java Lisp Lua OCaml Perl PHP Python Ruby
Server-side scripts Stored procedures	yes	no	no
Triggers	yes	no	no
Partitioning methods Methods for storing different data on different nodes	none		none
Replication methods Methods for redundantly storing data on multiple nodes	Multi-source replication	yes	none Repcached, a Memcached patch, provides this functionallity
MapReduce Offers an API for user-defined Map/Reduce methods	no	no	no
Consistency concepts Methods to ensure consistency in a distributed system	Immediate Consistency	Eventual Consistency
Foreign keys Referential integrity	yes	no	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID	no	no
Concurrency Support for concurrent manipulation of data	yes	yes	yes
Durability Support for making data persistent	yes	yes	no
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	Users and groups		yes using SASL (Simple Authentication and Security Layer) protocol
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More resources
	4D former name: 4th Dimension	Cloudflare Workers KV	Memcached
DB-Engines blog posts	MySQL, PostgreSQL and Redis are the winners of the March ranking 2 March 2016, Paul Andlinger show all