| Editorial information provided by DB-Engines |
| Name |
| | | Created as commercial project in 2013, FoundationDB has been acquired by Apple in March 2015 and was withdrawn from the market. As a consequence, the product was removed from the DB-Engines ranking. In April 2018, Apple open-sourced FoundationDB and it therefore reappears in the ranking. |
| Description | Wide-column store based on ideas of BigTable and DynamoDB  Optimized for write access | Apache Ignite is a memory-centric distributed database, caching, and processing platform for transactional, analytical, and streaming workloads, delivering in-memory speeds at petabyte scale. | Ordered key-value store. Core features are complimented by layers. |
| Primary database model | Wide column store | Key-value store
Relational DBMS | Document store supported via specific layer
Key-value store
Relational DBMS supported via specific SQL-layer |
| Secondary database models | Vector DBMS starting with release V5 | | |
| | | |
| Website | cassandra.apache.org | ignite.apache.org | github.com/apple/foundationdb |
| Technical documentation | cassandra.apache.org/doc/latest | apacheignite.readme.io/docs | apple.github.io/foundationdb |
| Developer | Apache Software Foundation Apache top level project, originally developped by Facebook | Apache Software Foundation | FoundationDB |
| Initial release | 2008 | 2015 | 2013 |
| Current release | 5.0-rc1, July 2024 | 2.16.0, December 2023 | 6.2.28, November 2020 |
| License Commercial or Open Source | Open Source Apache version 2 | Open Source Apache 2.0 | Open Source Apache 2.0 |
| Cloud-based only Only available as a cloud service | no | no | no |
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Providers of DBaaS offerings, please contact us to be listed. | | | |
| Implementation language | Java | C++, Java, .Net | C++ |
| Server operating systems | BSD
Linux
OS X
Windows | Linux
OS X
Solaris
Windows | Linux
OS X
Windows |
| Data scheme | schema-free | yes | schema-free some layers support schemas |
| Typing predefined data types such as float or date | yes | yes | no some layers support typing |
| 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 | yes | |
| Secondary indexes | restricted only equality queries, not always the best performing solution | yes | no |
| SQL Support of SQL | SQL-like SELECT, DML and DDL statements (CQL) | ANSI-99 for query and DML statements, subset of DDL | supported in specific SQL layer only |
| APIs and other access methods | Proprietary protocol CQL (Cassandra Query Language, an SQL-like language)
Thrift | HDFS API
Hibernate
JCache
JDBC
ODBC
Proprietary protocol
RESTful HTTP API
Spring Data | |
| Supported programming languages | C#
C++
Clojure
Erlang
Go
Haskell
Java
JavaScript Node.js
Perl
PHP
Python
Ruby
Scala | C#
C++
Java
PHP
Python
Ruby
Scala | .Net
C
C++
Go
Java
JavaScript Node.js
PHP
Python
Ruby
Swift |
| Server-side scripts Stored procedures | no | yes (compute grid and cache interceptors can be used instead) | in SQL-layer only |
| Triggers | yes | yes (cache interceptors and events) | no |
| Partitioning methods Methods for storing different data on different nodes | Sharding no "single point of failure" | Sharding | Sharding |
| Replication methods Methods for redundantly storing data on multiple nodes | selectable replication factor Representation of geographical distribution of servers is possible | yes (replicated cache) | yes |
| MapReduce Offers an API for user-defined Map/Reduce methods | yes | yes (compute grid and hadoop accelerator) | no |
| Consistency concepts Methods to ensure consistency in a distributed system | Eventual Consistency
Immediate Consistency can be individually decided for each write operation | Immediate Consistency | Linearizable consistency |
| Foreign keys Referential integrity | no | no | in SQL-layer only |
| Transaction concepts Support to ensure data integrity after non-atomic manipulations of data | no Atomicity and isolation are supported for single operations | ACID | ACID |
| Concurrency Support for concurrent manipulation of data | yes | yes | yes |
| Durability Support for making data persistent | yes | yes | yes |
| In-memory capabilities Is there an option to define some or all structures to be held in-memory only. | no | yes | |
| User concepts Access control | Access rights for users can be defined per object | Security Hooks for custom implementations | no |
| More information provided by the system vendor |
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19 April 2018, AppleInsider FoundationDB team’s new venture, Antithesis, raises $47M to enhance software testing
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19 April 2018, GeekWire provided by Google News |
