sql union order by datetime

[wwttqq85538649]

select * from
(select top 100 percent id, businessNum,exportTime,shipSide,shipOwner from counter where type = 1 and year(exportTime) = year(getdate()) order by 3 ) a

此句无法按时间字段exportTime 进行排序，
如果是只有下面这么一段就可以排序
select top 100 percent id, businessNum,exportTime,shipSide,shipOwner from counter where type = 1 and year(exportTime) = year(getdate()) order by 3

谢谢高手帮忙解答。

[快溜]

order by 3 

写在sql句末试试。

[gw6328]

排序是一条sql语句的倒数第二步吧（最后一步是输出select from之间的）
这个应该是放在最后你可以
select * from
(select top 100 percent id, businessNum,exportTime,shipSide,shipOwner from counter where type = 1 and year(exportTime) = year(getdate()) ) a order by 3
这样子

[AcHerat]

select * from
(select top 100 percent id, businessNum,exportTime,shipSide,shipOwner from counter where type = 1 and year(exportTime) = year(getdate()) order by 3 ) a
--这样的语句在子查询里对某个字段排序是没有必要的，SQL当然会提示你无法按...排序！
--你可以把3换成1、2、4等其他的试试。

[wwttqq85538649]

[Quote=引用 2 楼 jinfengyiye 的回复:]
排序是一条sql语句的倒数第二步吧（最后一步是输出select from之间的）
这个应该是放在最后你可以
select * from
(select top 100 percent id, businessNum,exportTime,shipSide,shipOwner from counter where type = 1 and year(exportTime) = year(get……
[/Quote]

噢不好意思，我的目的是要使用union的
select * from
(select top 100 percent id, businessNum,exportTime,shipSide,shipOwner from counter where type = 1 and year(exportTime) = year(getdate()) order by 3 ) a
union
select * from
(select top 100 percent id, businessNum,exportTime,shipSide,shipOwner from counter where type = 2 and year(exportTime) = year(getdate()) order by 3 ) b

我的意图是这样的，结果不能按exportTime字段进行排序

[快溜]

select * from (
(select top 100 percent id, businessNum,exportTime,shipSide,shipOwner from counter where type = 1 and year(exportTime) = year(getdate()))   
union
select * from
(select top 100 percent id, businessNum,exportTime,shipSide,shipOwner from counter where type = 2 and year(exportTime) = year(getdate()))) b order by 3

[叶子]

order by 是一定要放在最外层的。

[wwttqq85538649]

[Quote=引用 5 楼 ssp2009 的回复:]
SQL code

select * from (
(select top 100 percent id, businessNum,exportTime,shipSide,shipOwner from counter where type = 1 and year(exportTime) = year(getdate()))
union
select * from
(select……
[/Quote]

你好，我是打算在这两个select 语句中分别排序。不是对整个查询结果进行排序，谢谢。

[AcHerat]

select * from
(select top 100 percent id, businessNum,exportTime,shipSide,shipOwner from counter where type = 1 and year(exportTime) = year(getdate())) a
order by 3
union
select * from
(select top 100 percent id, businessNum,exportTime,shipSide,shipOwner from counter where type = 2 and year(exportTime) = year(getdate())) b
order by 3

[wwttqq85538649]

[Quote=引用 8 楼 acherat 的回复:]

select * from
(select top 100 percent id, businessNum,exportTime,shipSide,shipOwner from counter where type = 1 and year(exportTime) = year(getdate())) a
order by 3
union
select * from
(select……
[/Quote]
你好，这样我也试过了，会报错。

[快溜]

select * from (
(select top 100 0 as ord,percent id, businessNum,exportTime,shipSide,shipOwner from counter 
where type = 1 and year(exportTime) = year(getdate()))   
union
select * from
(select top 100 1 as ord,percent id, businessNum,exportTime,shipSide,shipOwner from counter 
where type = 2 and year(exportTime) = year(getdate()))) b 
order by ord,exportTime 

[AcHerat]

select * from
(select top 100 percent id, businessNum,exportTime,shipSide,shipOwner
from counter where type = 1 and year(exportTime) = year(getdate())
order by 3  
union
select top 100 percent id, businessNum,exportTime,shipSide,shipOwner
from counter where type = 2 and year(exportTime) = year(getdate())
order by 3)U

[wwttqq85538649]

[Quote=引用 5 楼 ssp2009 的回复:]
SQL code

select * from (
(select top 100 percent id, businessNum,exportTime,shipSide,shipOwner from counter where type = 1 and year(exportTime) = year(getdate()))
union
select * from
(select……
[/Quote]

select * from
(select top 100 percent id, businessNum,exportTime,shipSide,shipOwner from counter where type = 1 and year(exportTime) = year(getdate()) order by 3 ) a
union
select * from
(select top 100 percent id, businessNum,exportTime,shipSide,shipOwner from counter where type = 2 and year(exportTime) = year(getdate()) order by 3 ) b

我的意图是这样的，结果不能按exportTime字段进行排序
我要分开排序的，谢谢。

有人回复了我的帖子，竟然没发现。用《Csdn收音机》告别烦恼！

[Shawn]

主只要把union换成union all就好了.

;WITH temp1 AS
(
	SELECT id = 1, exportTime = CAST('2011-1-1' AS DATETIME) UNION ALL
	SELECT 2, '2011-1-3' UNION ALL
	SELECT 3, '2011-1-2'
),
temp2 AS
(
	SELECT id = 1, exportTime = CAST('2010-1-7' AS DATETIME) UNION ALL
	SELECT 2, '2010-1-6' UNION ALL
	SELECT 3, '2010-1-5'
)
SELECT * FROM
(SELECT TOP(2) * FROM temp1 ORDER BY 2 DESC) A
UNION ALL
SELECT * FROM
(SELECT TOP(2) * FROM temp2 ORDER BY 2 DESC) B

[feixianxxx]

select * from
(select top 100 percent id, businessNum,exportTime,shipSide,shipOwner from counter where type = 1 and year(exportTime) = year(getdate()) order by 3 ) a

===》

理由很简单，
select top 100 percent id, businessNum,exportTime,shipSide,shipOwner from counter where type = 1 and year(exportTime) = year(getdate()) order by 3
这部分是查询是一个结果集，作为一个表出现在from后面
sql server中的结果集是无序的 它只是个集合。。也就说 它即使查出来时排序好的，但是作为一个结果集的时候又被打乱了。
所以如果你要保证查询顺序 要在最外层重新指定排序

select * from
(select top 100 percent id, businessNum,exportTime,shipSide,shipOwner from counter where type = 1 and year(exportTime) = year(getdate()) order by 3 ) a
order by exportTime;

发现了么？这样的话 top 100 percent .....order by 毫无意义了。。
所以sql 语句少出现这样的语句