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MongoDB is a source-available, cross-platform, document-oriented database program. Classified as a NoSQL database product, MongoDB uses JSON-like documents with optional schemas. Released in February 2009 by 10gen (now MongoDB Inc.), it supports features like sharding, replication, and ACID transactions (from version 4.0).
MongoDB, Inc. is an American software company that develops and provides commercial support for the source-available database engine MongoDB, a NoSQL database that stores data in JSON-like documents with flexible schemas.
Both a developer and a commercial edition [9] was released, along with a business license [10] for integrating with other database management systems such as PostgreSQL. [11] [12] In Spring 2019, MongoDB acquired Realm for 39 million USD. [13] In September 2023, the Realm database was rebranded to be called "Atlas Device SDKs".
A document-oriented database is a specialized key-value store, which itself is another NoSQL database category. In a simple key-value store, the document content is opaque. A document-oriented database provides APIs or a query/update language that exposes the ability to query or update based on the internal structure in the document. This ...
The changes are first recorded in the log, which must be written to stable storage, before the changes are written to the database. [2] The main functionality of a write-ahead log can be summarized as: [3] Allow the page cache to buffer updates to disk-resident pages while ensuring durability semantics in the larger context of a database system.
Download the file enwiki-YYYYMMDD-pages-articles.xml.bz2 from the most recent dump. For example, on your.org, go to directory YYYYMMDD for the most recent date (for example 20171020), and retrieve the requested file (for example enwiki-20171020-pages-articles.xml.bz2). Create a command file, for example ListCheckWiki64.txt with the following ...
One solution is a "shadow" password file to hold the password hashes separate from the other data in the world-readable passwd file. For local files, this is usually /etc/shadow on Linux and Unix systems, or /etc/master.passwd on BSD systems; each is readable only by root. (Root access to the data is considered acceptable since on systems with ...
Download the file enwiki-YYYYMMDD-pages-articles.xml.bz2 from the most recent dump. For example, on your.org, go to directory YYYYMMDD for the most recent date (for example 20171020), and retrieve the requested file (for example enwiki-20171020-pages-articles.xml.bz2). Create a command file, for example ListCheckWiki111.txt with the following ...