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Redis can rewrite the append-only file in the background to avoid an indefinite growth of the journal. Journaling was introduced in version 1.1 and is generally considered the safer approach. By default, Redis writes data to a file system at least every 2 seconds, with more or less robust options available if needed.
Redis: Redis Labs: 2009 C, C++, Python, Lua, C#, etc. [10] Redis Source Available License v2 and the Server Side Public License v1 [11] Redis is a source-available software project that implements data structure servers. It is networked, in-memory, and stores keys with optional durability. SafePeak: SafePeak Technologies Proprietary
Valkey is an open-source in-memory storage, used as a distributed, in-memory key–value database, cache and message broker, with optional durability. [8] Because it holds all data in memory and because of its design, Valkey offers low-latency reads and writes, making it particularly suitable for use cases that require a cache.
In computer programming, create, read, update, and delete (CRUD) are the four basic operations (actions) of persistent storage. [1] CRUD is also sometimes used to describe user interface conventions that facilitate viewing, searching, and changing information using computer-based forms and reports.
Enterprise Edition has support of NoSQL databases, persistent query manager and a few other enterprise-level features. The EE version is not open-source and requires the purchase of a license (a trial license can be generated free of charge). List of additional features: Cassandra; MongoDB; Redis; Persistent QM; JSON documents editor (mostly ...
Dgraph implements modified GraphQL language called DQL (formerly GraphQL+-) Gremlin: a graph programming language that is a part of Apache TinkerPop open-source project [51] SPARQL: a query language for RDF databases that can retrieve and manipulate data stored in RDF format; regular path queries, a theoretical language for queries on graph ...
A singly-linked list structure, implementing a list with three integer elements. The term list is also used for several concrete data structures that can be used to implement abstract lists, especially linked lists and arrays. In some contexts, such as in Lisp programming, the term list may refer specifically to a linked list rather than an array.
A tabular data card proposed for Babbage's Analytical Engine showing a key–value pair, in this instance a number and its base-ten logarithm. 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 more commonly known today as a dictionary or hash table.