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  1. Prepare
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  3. Basic Select
  4. Weather Observation Station 5
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Weather Observation Station 5

  • sreeram891
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    UNION is to combine the results of two or multiple SELECT statement.

    Example : You have 2 tables, Movie & rating both are having common fields movie_name, Duration,director_name

    you can write in such a way like..

    (SELECT MOVIE_NAME,DURATION FROM MOVIE) UNION (SELECT MOVIE_NAME,DURATION FROM RATING);