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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 .
For the decimal formats, the usual encoding of unsigned integers is used. If an operation has a single NaN input and propagates it to the output, the result NaN's payload should be that of the input NaN (this is not always possible for binary formats when the signaling/quiet state is encoded by an is_signaling flag, as explained above). If ...
Nan for centuries was a separate, autonomous kingdom with few relationships with the outside world. There is evidence of prehistoric habitation, but it wasn't until several small mueang united to form Nanthaburi on the Nan River in the mid-14th century, contemporaneously with the creation of Luang Prabang and the Lan Xang (Million Elephants) kingdom in Laos, that the city became notable.