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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 ...
SQL is a well known query language and data manipulation language for relational databases; XQuery is a query language for XML data sources; XPath is a declarative language for navigating XML documents; YQL is an SQL-like query language created by Yahoo! Search engine query languages, e.g., as used by Google [5] or Bing [6]
You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.
The aim of the project is to draw up a full directory of missing content from Urdu Wikipedia organised by topic and sub topic as well as to tag existing articles which need major translation from the other language equivalent and begin to work towards creating the articles or improving an existing article. Once the directory is drawn up, the ...
You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.
Topic name articles needing translation from Language name Wikipedia Example: for topic name Biography and Urdu we have: Biography articles needing translation from Urdu Wikipedia; create the category, e.g., Category:Biography articles needing translation from Urdu Wikipedia Add the following text, and save the page:
The table below lists the featured articles for a given "foreign-" (i.e., non-English-)language Wikipedia initially sorted by the number of corresponding articles in other Wikipedias. The "Languages" column indicates the number of articles on all Wikipedias corresponding to the other-language featured article; the "#" column provides a ranking ...