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Set operations in SQL is a type of operations which allow the results of multiple queries to be combined into a single result set. [ 1 ] Set operators in SQL include UNION , INTERSECT , and EXCEPT , which mathematically correspond to the concepts of union , intersection and set difference .
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.
An in-basket test or an in-basket exercise is a test used by companies or governments in hiring and promoting employees. [1] During the test, job applicants receive a number of mails, telephone calls, documents and memos. They then have a limited period of time to set priorities, organize their working schedule accordingly and respond to mail ...