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Download QR code; In other projects ... Metadata; Size of this JPG preview of this PDF file: 432 × 599 pixels. Other ... Cheat sheet explaining basic Wikipedia ...
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SQL includes operators and functions for calculating values on stored values. SQL allows the use of expressions in the select list to project data, as in the following example, which returns a list of books that cost more than 100.00 with an additional sales_tax column containing a sales tax figure calculated at 6% of the price.
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 ...
Download as PDF; Printable version; ... This list includes SQL reserved words – aka SQL reserved keywords, [1 ] [2] as the SQL:2023 specifies ... FUNCTION SQL-2023 ...
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Wiki markup quick reference (PDF download) For a full list of editing commands, see Help:Wikitext; For including parser functions, variables and behavior switches, see Help:Magic words; For a guide to displaying mathematical equations and formulas, see Help:Displaying a formula; For a guide to editing, see Wikipedia:Contributing to Wikipedia
Globals are stored in structured data files by MUMPS, and accessed only as MUMPS globals. MUMPS has a long history of cached, journaled, and balanced B-tree key/value disk storage, including transaction control for multiple file transaction 'commit' and 'roll-back' at the language/operating system level. Real-world databases can often grow ...