UNION 查询-按照查询写入的顺序显示结果

发布于 2024-09-30 09:49:44 字数 259 浏览 0 评论 0原文

示例 -

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

它按讨论 ID 的顺序显示混合两种类型结果的结果

我想首先显示印度结果，然后显示澳大利亚结果，并且我无法使用选项 ALl，因为我还需要删除重复的行。

应该做什么？

原文

example -

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

It shows me results in order of discussion IDs mixing both typse of results

I want to display India results first then Australia's results and I cant use Option ALl as I need to remove duplicate rows also.

What should be done?

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埋情葬爱 2024-10-07 09:49:44

您可以在

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 - 29/11/2010

上添加一列，由于 ORD 问题的重复，我正在考虑一种也许更优雅的方法来实现此目的

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

You could add a column to order on

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

order by ORD

EDIT - 29/11/2010

Due to the duplicate with ORD problem i was thinking about a, maybe, more elegant way to achive this

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

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难以启齿的温柔 2024-10-07 09:49:44

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

Try:

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

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赴月观长安 2024-10-07 09:49:44

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

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

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~没有更多了~