Sql 从两个表中选择数据并按日期排序

我有两个数据表，需要合并它们并按日期排序。我有下面的问题，但工会一直给我一个错误

SELECT 

AssetTitle,
AssetDate,
AssetTeaser,
AssetLink

FROM pressAssets WHERE AssetType=1 ORDER BY AssetDate ASC

UNION ALL

SELECT

BlogTitle,
BlogDate,
BlogEntry,
BlogLink


FROM

blogTempTable ORDER BY BlogDate ASC, AssetDate ASC;

有人能帮我吗？

使用子查询：

select *
from
(
    SELECT 

    AssetTitle,
    AssetDate,
    AssetTeaser,
    AssetLink

    FROM pressAssets WHERE AssetType=1 

    UNION ALL

    SELECT

    BlogTitle,
    BlogDate,
    BlogEntry,
    BlogLink


    FROM

    blogTempTable
)a
ORDER BY AssetDate ASC;

---

对于联合结果集，您只允许使用一个

ORDER BY

。您不能单独对这两个查询排序。

您的代码不能按原样工作。这将得到一个结果集，但日期字段都合并在一起；应用

联合后，无法区分源

SELECT 
  Title,
  Date,
  Teaser,
  Link

FROM (
SELECT 

AssetTitle Title,
AssetDate Date,
AssetTeaser Teaser,
AssetLink Link

FROM pressAssets WHERE AssetType=1 

UNION ALL

SELECT

BlogTitle Title,
BlogDate Date,
BlogEntry Teaser,
BlogLink Link


FROM

blogTempTable) T

ORDER BY Date ASC;

我认为：

Select * from 
(
SELECT AssetTitle as mtitle, AssetDate as mdate, 
AssetTeaser as mtease, AssetLink as mlink
FROM pressAssets 
WHERE AssetType=1
UNION
SELECT BlogTitle as mtitle, BlogDate as mdate,
BlogEntry as mtease, BlogLink, as mlink
FROM blogTempTable
)
ORDER BY mdate

很接近

编辑：这与Yuck的更正答案的方法相同。
从
order by
中删除了
BlogDate
，因为它在
Union
@phlogratos:谢谢帮助：）我尝试了你的解决方案，但它在“as”部分不断抛出错误。我确信“Union error”不是有效的SQL Server错误消息。接下来，请将完整的错误信息与您的问题一起发布“UNION附近语法不正确”似乎是UNION附近的错误，所以我个人认为这是UNION错误。