case OrderDate when OrderDate between '1999-1-1' and '2005-12-31' then 8.3

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case OrderDate  when OrderDate between '1999-1-1' and '2005-12-31'  then 8.3    ??


case 里是否可以用 between    and ??              用between   and  是  ok 的  冇问题啦

只是这语法不对,应该这样写:


case   when OrderDate between '1999-1-1' and '2005-12-31'  then 8.3   end ......记得 End      


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