DBMS > Cloudflare Workers KV vs. H2 vs. SAP Advantage Database Server vs. ToroDB

System Properties Comparison Cloudflare Workers KV vs. H2 vs. SAP Advantage Database Server vs. ToroDB

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Editorial information provided by DB-Engines
Name	Cloudflare Workers KV  Xexclude from comparison	H2  Xexclude from comparison	SAP Advantage Database Server former name: Sybase ADS  Xexclude from comparison	ToroDB  Xexclude from comparison
			SAP Advantage Database Server seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.	ToroDB 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.	Full-featured RDBMS with a small footprint, either embedded into a Java application or used as a database server.	Low-cost RDBMS with access to ISAM and FoxPro data structures	A MongoDB-compatible JSON document store, built on top of PostgreSQL
Primary database model	Key-value store	Relational DBMS	Relational DBMS	Document store
Secondary database models		Spatial DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.39 Rank #274   Overall #39   Key-value stores	Score 8.33 Rank #46   Overall #30   Relational DBMS
Website	www.cloudflare.com/­developer-platform/­workers-kv	www.h2database.com	www.sap.com/products/advantage-database-server.html	github.com/­torodb/­server
Technical documentation	developers.cloudflare.com/­kv/­api	www.h2database.com/­html/­main.html
Developer	Cloudflare	Thomas Mueller	Sybase, SAP	8Kdata
Initial release	2018	2005	1993	2016
Current release		2.2.220, July 2023
License Commercial or Open Source	commercial	Open Source dual-licence (Mozilla public license, Eclipse public license)	commercial	Open Source AGPL-V3
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		Java		Java
Server operating systems	hosted	All OS with a Java VM	Linux Windows	All OS with a Java 7 VM
Data scheme	schema-free	yes	yes	schema-free
Typing predefined data types such as float or date	no	yes	yes	yes string, integer, double, boolean, date, object_id
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	no
Secondary indexes	no	yes	yes
SQL Support of SQL	no	yes	yes
APIs and other access methods	HTTP REST Proprietary protocol	JDBC ODBC	.NET Client API ADO.NET JDBC ODBC OLE DB
Supported programming languages	C C++ Dart JavaScript Kotlin Python Rust Scala	Java	Delphi Perl PHP
Server-side scripts Stored procedures	no	Java Stored Procedures and User-Defined Functions	yes
Triggers	no	yes	yes	no
Partitioning methods Methods for storing different data on different nodes		none	none	Sharding
Replication methods Methods for redundantly storing data on multiple nodes	yes	With clustering: 2 database servers on different computers operate on identical copies of a database	Multi-source replication CONFLICT Trigger to resolve replication conflicts Source-replica replication	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	Immediate Consistency	Eventual Consistency Immediate Consistency
Foreign keys Referential integrity	no	yes	yes	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	no	ACID	ACID	no
Concurrency Support for concurrent manipulation of data	yes	yes, multi-version concurrency control (MVCC)	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.	no	yes	no caching of (temporary) tables can be configured
User concepts Access control		fine grained access rights according to SQL-standard	fine grained access rights according to SQL-standard	Access rights for users and roles
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More resources
	Cloudflare Workers KV	H2	SAP Advantage Database Server former name: Sybase ADS	ToroDB
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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