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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 ...
A query language, also known as data query language or database query language (DQL), is a computer language used to make queries in databases and information systems. In database systems, query languages rely on strict theory to retrieve information. [1] A well known example is the Structured Query Language (SQL).
For example, an Italian stemmer is more complex than an English one (because of a greater number of verb inflections), a Russian one is more complex (more noun declensions), a Hebrew one is even more complex (due to nonconcatenative morphology, a writing system without vowels, and the requirement of prefix stripping: Hebrew stems can be two ...
A famous example for lexical ambiguity is the following sentence: "Wenn hinter Fliegen Fliegen fliegen, fliegen Fliegen Fliegen hinterher.", meaning "When flies fly behind flies, then flies fly in pursuit of flies." [40] [circular reference] It takes advantage of some German nouns and corresponding verbs being homonymous. While not noticeable ...
British English slang, meaning a stupid or contemptible person; An acronym for "global information tracker" (when it works) An acronym for "goddamn idiotic truckload of sh*t" (when it breaks) When asked about the origin of the name, Torvalds jokingly stated, "I'm an egotistical bastard, and I name all my projects after myself." [24]
A computer program is a sequence or set [a] of instructions in a programming language for a computer to execute. It is one component of software, which also includes documentation and other intangible components. [1] A computer program in its human-readable form is called source code.
The four original inventions of writing are recognized in Mesopotamia, Egypt, China, and the Mayan culture
This generates sentences such as "the cat eats the bat", "a bat eats the cat". One can generate all of the valid expressions in the language generated by this grammar at a Prolog interpreter by typing sentence(X,[]). Similarly, one can test whether a sentence is valid in the language by typing something like sentence([the,bat,eats,the,bat],[]).