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

  • sebi_essling
     + 4 comments

    Oracle provides the FETCH FIRST mechanism which allows you to select n rows with order by. This is much better then SELECT * around your whole statement.

    For example:

    SELECT CITY, LENGTH(CITY) FROM STATION ORDER BY LENGTH(CITY),CITY FETCH FIRST 1 ROWS ONLY;

    Note: The Orderby is executed before we fetch the first row.