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2. SQL - Wikipedia

   en.wikipedia.org/wiki/SQL

   SQL was initially developed at IBM by Donald D. Chamberlin and Raymond F. Boyce after learning about the relational model from Edgar F. Codd [12] in the early 1970s. [13] This version, initially called SEQUEL (Structured English Query Language), was designed to manipulate and retrieve data stored in IBM's original quasirelational database management system, System R, which a group at IBM San ...

3. Data-centric programming language - Wikipedia

   en.wikipedia.org/wiki/Data-centric_programming...

   SQL is the best known declarative, data-centric programming language and has been in use since the 1980s and became a de facto standard for use with relational databases. . However, a variety of new system architectures and associated programming languages have been implemented for data-intensive computing, Big Data applications, and large-scale data analysis applicati

4. Programming languages used in most popular websites

   en.wikipedia.org/wiki/Programming_languages_used...

   Their development typically involves server-side coding, client-side coding and database technology. The programming languages applied to deliver such dynamic web content vary vastly between sites. Programming languages used in most popular websites*

5. Query language - Wikipedia

   en.wikipedia.org/wiki/Query_language

   Broadly, query languages can be classified according to whether they are database query languages or information retrieval query languages. The difference is that a database query language attempts to give factual answers to factual questions, while an information retrieval query language attempts to find documents containing information that is relevant to an area of inquiry.

6. MySQL - Wikipedia

   en.wikipedia.org/wiki/MySQL

   MySQL (/ ˌ m aɪ ˌ ɛ s ˌ k juː ˈ ɛ l /) [5] is an open-source relational database management system (RDBMS). [5] [6] Its name is a combination of "My", the name of co-founder Michael Widenius's daughter My, [7] and "SQL", the acronym for Structured Query Language.

7. PostgreSQL - Wikipedia

   en.wikipedia.org/wiki/PostgreSQL

   Functions written in C offer the best performance, but bugs in code can crash and potentially corrupt the database. Most built-in functions are written in C. In addition, PostgreSQL allows procedural languages to be loaded into the database through extensions. Three language extensions are included with PostgreSQL to support Perl, Tcl, and Python.