SQL中的手动排序

Question

如果我有一张桌子......

ThingName | ThingCategory
-------------------------
thing 1   | cat1
thing 2   | cat2
thing 3   | cat3

我将如何首先选择它们cat2,然后cat1呢cat3

这甚至可能吗？

Answer 1

select *
from Things
order by case
    when ThingCategory = 'cat2' then 1
    when ThingCategory = 'cat1' then 2
    when ThingCategory = 'cat3' then 3
    else 4 -- Might want the default case, too
end