Question

如何将ORDER BY CHARINDEX()与UNION一起使用？我想要的是：

select  Id,Name from A where Name like '%Raspberry%' 
Union
select  Id,Name from B where Name like '%Raspberry%' 
order by CHARINDEX('Raspberry',Name)

Answer 1

Common Table Expression会帮助您：

with cte as (
select  Id,Name, CHARINDEX('Raspberry', Name) ci from #t1 where Name like '%Raspberry%' 
Union
select  Id,Name, CHARINDEX('Raspberry', Name) ci from #t2 where Name like '%Raspberry%' 
) 
select  Id, Name
from cte
order by ci

<强> SQL FIDDLE

Answer 2

如前所述，问题是如果使用UNION，则必须按顺序选择列。试试这个。

select  Id,Name,CHARINDEX('Raspberry',Name) as order_col 
from A 
where Name like '%Raspberry%' 
Union
select  Id,Name,CHARINDEX('Raspberry',Name) as order_col 
from B 
where Name like '%Raspberry%' 
order by order_col

如何使用ORDER BY CHARINDEX（）和UNION？

2 个答案: