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New scalar operations such as string concatenation and substring extraction, date and time mathematics, and conditional statements. New set operations such as UNION, UNION ALL, CROSS JOIN, and formalized JOIN types (INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL OUTER JOIN). Conditional expressions with CASE. For an example, see Case (SQL).
In computer science, a substring index is a data structure which gives substring search in a text or text collection in sublinear time. Once constructed from a document or set of documents, a substring index can be used to locate all occurrences of a pattern in time linear or near-linear in the pattern size, with no dependence or only logarithmic dependence on the document size.
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 ...
In less than a month in office the Trump administration has simultaneously dismantled foreign aid programs that support fragile democracies abroad and put on leave federal workers who protect US ...
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Amid recent reports that Ye, left, and Bianca Censori are in the early stages of a divorce, a rep for the controversial couple is clearing the air. Ye and Bianca Censori at the Grammys: ...
The best: "The Brutalist" star Adrien Brody has been getting all the flowers this Oscar year, so he's a shoo-in for a nomination (and probably a win). Also looking good to get in are SAG and BAFTA ...