A key–value database, or key–value store, is a data storage paradigm designed for storing, retrieving, and managing associative arrays, and a data structure...
5 KB (531 words) - 06:16, 24 July 2024
An Ordered Key-Value Store (OKVS) is a type of data storage paradigm that can support multi-model database. An OKVS is an ordered mapping of bytes to...
7 KB (789 words) - 18:20, 6 August 2024
A name–value pair, also called an attribute–value pair, key–value pair, or field–value pair, is a fundamental data representation in computing systems...
3 KB (314 words) - 08:25, 10 August 2024
software portal Lightning Memory-Mapped Database (LMDB) is an embedded transactional database in the form of a key-value store. LMDB is written in C with API...
31 KB (3,323 words) - 19:47, 8 July 2024
Redis (redirect from Redis database format)
source-available, in-memory storage, used as a distributed, in-memory key–value database, cache and message broker, with optional durability. Because it holds...
29 KB (2,637 words) - 20:26, 26 August 2024
rapid traversal. Document-oriented databases are inherently a subclass of the key-value store, another NoSQL database concept. The difference[contradictory]...
31 KB (2,325 words) - 21:45, 16 August 2024
Oracle NoSQL Database is a NoSQL-type distributed key-value database from Oracle Corporation. It provides transactional semantics for data manipulation...
19 KB (2,000 words) - 00:24, 5 December 2023
cache database. Aerospike offers Key-Value, JSON Document, Graph data, and Vector Search models. Aerospike is open source distributed NoSQL database management...
20 KB (1,159 words) - 21:46, 23 July 2024
Valkey (category Key-value databases)
an open-source in-memory storage, used as a distributed, in-memory key–value database, cache and message broker, with optional durability. Because it holds...
30 KB (2,730 words) - 20:30, 26 August 2024
Amazon DynamoDB (category Key-value databases)
proprietary NoSQL database offered by Amazon.com as part of the Amazon Web Services portfolio. DynamoDB offers a fast persistent key–value datastore with...
22 KB (2,504 words) - 13:54, 28 August 2024
Memcached (category Key-value databases)
Memcached value with the unique key "userrow:userid" exists, where userid is some number. If the result does not exist, it would select from the database as...
17 KB (1,940 words) - 21:51, 25 April 2024
index in database is most commonly used index in data management. It is created on a column that contains unique values, such as a primary key or email...
17 KB (2,458 words) - 13:15, 1 June 2024
Tkrzw (category Key-value databases)
managing key–value databases. Tokyo Cabinet was sponsored by the Japanese social networking site Mixi, and was a multithreaded embedded database manager...
6 KB (144 words) - 22:26, 18 August 2024
Berkeley DB (redirect from Berkeley Database License)
Berkeley DB (BDB) is an embedded database software library for key/value data, historically significant in open-source software. Berkeley DB is written...
16 KB (1,522 words) - 20:01, 26 May 2024
NoSQL (redirect from Non-relational database)
NoSQL databases (e.g. key–value pair, wide column, graph, or document) are different from those used by default in relational databases, making some operations...
29 KB (2,404 words) - 22:55, 9 August 2024
DBM (computing) (redirect from Trivial Database Manager)
DBM is a library and file format providing fast, single-keyed access to data. A key-value database from the original Unix, dbm is an early example of a NoSQL...
13 KB (1,607 words) - 13:27, 21 August 2024
primary key (PK) for each row in a table. When a new row is written to the table, a new unique value for the primary key is generated; this is the key that...
32 KB (3,839 words) - 09:34, 12 August 2024
A surrogate key (or synthetic key, pseudokey, entity identifier, factless key, or technical key[citation needed]) in a database is a unique identifier...
18 KB (2,344 words) - 16:31, 8 August 2024
Database (LMDB) from Symas Corp. Mimer SQL MonetDB Embedded solidDB SQLite SQL Server Compact from Microsoft Corporation Sophia Embeddable key-value storage...
23 KB (2,569 words) - 17:21, 15 May 2024
RocksDB (category Key-value databases)
RocksDB is a high performance embedded database for key-value data. It is a fork of Google's LevelDB optimized to exploit multi-core processors (CPUs)...
21 KB (1,510 words) - 15:55, 6 August 2024
ArangoDB (category Key-value databases)
database system developed by ArangoDB Inc. ArangoDB is a multi-model database system since it supports three data models (graphs, JSON documents, key/value)...
18 KB (1,084 words) - 07:02, 30 August 2024
of relational databases, a foreign key is subject to an inclusion dependency constraint that the tuples consisting of the foreign key attributes in one...
15 KB (2,109 words) - 21:42, 14 April 2024
MUMPS syntax (section Global database)
MUMPS is a high performance transaction processing key–value database with integrated programming language. MUMPS allows multiple commands to appear on...
11 KB (1,687 words) - 19:02, 6 April 2024
FoundationDB (category Key-value databases)
"layers." The core database exposes an ordered key–value store with transactions. The transactions are able to read or write multiple keys stored on any machine...
9 KB (735 words) - 15:53, 5 July 2024
Bitcask (category Key-value databases)
an Erlang application that provides an API for storing and retrieving key/value data into a log-structured hash table. The design owes a lot to the principles...
4 KB (372 words) - 21:52, 17 June 2024
graph database (GDB) is a database that uses graph structures for semantic queries with nodes, edges, and properties to represent and store data. A key concept...
51 KB (4,647 words) - 04:13, 23 August 2024
LevelDB (category Key-value databases)
LevelDB is an open-source on-disk key-value store written by Google fellows Jeffrey Dean and Sanjay Ghemawat. Inspired by Bigtable, LevelDB source code...
8 KB (702 words) - 16:28, 12 January 2024
Referential integrity (category Database management systems)
referenced value must exist. For referential integrity to hold in a relational database, any column in a base table that is declared a foreign key can only...
8 KB (960 words) - 09:42, 24 March 2024
tolerance, NoSQL databases became prominent after 2009. NoSQL databases use a variety of data models, with document, graph, and key–value models being popular...
9 KB (1,011 words) - 03:22, 11 April 2024
A candidate key, or simply a key, of a relational database is any set of columns that have a unique combination of values in each row, with the additional...
9 KB (1,378 words) - 19:59, 13 March 2024