如何避免 UNION on count(*) 按值排序？

Question

此查询按 select count(*) 的值对结果进行排序。我不希望这发生。我怎样才能避免这种情况？我想按照它们在查询中的写入顺序显示它们。谢谢你的帮助。

这是一条查询：

(select count(*) as num_tweet from [TvPad2-dev].dbo.TWEET where REQUEST_ID = 7 
and CREATION_DATE>'2016-02-14 01:00:00.000' 
and CREATION_DATE<'2016-02-14 01:29:59.999' 
and text like '%arisa%') 

union 

(select count(*) as num_tweet from [TvPad2-dev].dbo.TWEET where REQUEST_ID = 7 
and CREATION_DATE>'2016-02-14 01:30:00.000' 
and CREATION_DATE<'2016-02-14 01:59:59.999' 
and text like '%arisa%')

Answer 1

使用 UNION ALL。

(select count(*) as num_tweet from [TvPad2-dev].dbo.TWEET where REQUEST_ID = 7 
and CREATION_DATE>'2016-02-14 01:00:00.000' 
and CREATION_DATE<'2016-02-14 01:29:59.999' 
and text like '%arisa%') 

union all

(select count(*) as num_tweet from [TvPad2-dev].dbo.TWEET where REQUEST_ID = 7 
and CREATION_DATE>'2016-02-14 01:30:00.000' 
and CREATION_DATE<'2016-02-14 01:59:59.999' 
and text like '%arisa%')

Answer 2

UNION ALL 可以解决问题。如果您将 UNION 更改为 UNION ALL，您将不会得到排序结果。

如何避免 UNION on count(*) 按值排序？

How avoid UNION on count(*) sorting by value?

mysql

union

count