SQL: Exception to an otherwise sorted result set

问题

Using Oracle 11g

I want a single exception to an otherwise sorted table

select fruit as popluar_choices  
from menu 
order by fruit /* Exception put 'grapefruit' at top of list */

Desired Result

popular_choices
-----------
grapefruit
apple
fig
kiwi
lemon
pear

It's similar to this post: How to apply non standard SQL column sort order?

回答1:

  select fruit as popluar_choices  
    from menu 
order by case fruit when 'grapefruit' then 0
                                      else 1
              end,
         fruit

回答2:

SELECT fruit AS popular_choices FROM menu
ORDER BY 
    CASE fruit
        WHEN 'grapefruit' THEN ''
        ELSE fruit
    END

回答3:

select fruit as popluar_choices  
from menu 
order by CASE fruit = 'grapefruit' THEN '__' ELSE fruit END

来源：https://stackoverflow.com/questions/9284536/sql-exception-to-an-otherwise-sorted-result-set