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2026-09-21
MongoDB — a document-oriented database. Instead of tables with rows it stores collections of documents in BSON format — a binary form of JSON with additional types (dates, binary data, decimal numbers). A document can …
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Redis (Remote Dictionary Server) — an in-memory key–value data store that keeps all data in RAM. Because of this, operations complete in fractions of a millisecond. Redis is rarely the primary database of an application: …
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SQLite — an embedded relational database. Unlike MySQL and PostgreSQL, it has no separate server process: it is a C library that is linked into the application, and the entire database is stored in a single file on disk. …
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PostgreSQL — a free object-relational DBMS developed by an independent international community. The project started in 1986 at the University of California, Berkeley under the name POSTGRES; in 1996 it received its …
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MySQL — a relational DBMS that has remained one of the most widespread in web development since the late 1990s. WordPress, Joomla, Drupal, many online stores and forums run on it, and it is supported by virtually every …
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A database is an organized storage of information that an application uses to write, search, modify, and delete data. A database server (DBMS) is the program that manages this storage: it accepts requests, maintains data …
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