Penguin
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Acronym for Structured Query Language (or, by consensus here, Stupid Query Language).

SQL is a set-centeric ProgrammingLanguage in which statements are excuted over a Schema of relations (tables) and return a set of results.

Someone should explain the general syntax of SQL here.

SELECT cols FROM tables WHERE condition UPDATE table SET column=value WHERE condition DELETE FROM table WHERE condition INSERT INTO table (columns) VALUES (values)