Question

示例 -

select * from discussion where title like '%india%' 
UNION 
select * from discussion where title like '%Australia%'

它按照讨论ID的顺序显示结果两种类型的结果

我想首先显示印度的结果然后显示澳大利亚的结果，我不能使用Option ALl，因为我还需要删除重复的行。

应该做什么？

Answer 1

您可以在

上添加要订购的列

select *, 1 as ORD from discussion where title like '%india%' 
UNION 
select *, 2 as ORD from discussion where title like '%Australia%'

order by ORD

编辑 - 2010年11月29日

由于与ORD问题的重复，我正在考虑一种，或许，更优雅的方式来实现这个

Select * from discussion
where title like '%india%' or title like '%Australia%'
order by (case when title like '%india%'then 1 else 2 end)

Answer 2

尝试：

SELECT * FROM
(
  select 1 OrderNo, d.* from discussion d where title like '%india%' 
  UNION 
  select 2 OrderNo, d.* from discussion d where title like '%Australia%'
)
ORder by OrderNo

Answer 3

select * from
(
select * from discussion where title like '%india%' 
UNION 
select * from discussion where title like '%Australia%'
)
ORDER BY title DESC
;

UNION查询 - 显示订单查询的结果

3 个答案: