[英]SQL ACCESS - select max(date) and corresponding value
How can I get the corresponding value of MAX(date). 如何获得MAX(日期)的相应值。 Access it returns me an error when I select directly the column with the specified value.
当我直接选择具有指定值的列时,访问它会返回错误。
For example, I want to be shown only the line from the image. 例如,我想只显示图像中的线条。
Thank you. 谢谢。
Use TOP
and ORDER BY
: 使用
TOP
和ORDER BY
:
select top 1 *
from t
order by date desc;
EDIT: 编辑:
If you want the last date per code, then use a correlated subquery: 如果您想要每个代码的最后日期,请使用相关子查询:
select t.*
from t
where t.date = (select max(t2.date) from t t2 where t2.code = t.code);
select * from tblName where DocumentDate in (select max(DocumentDate ) from tblName)
请用这个
You mast creat the join query. 你创建了连接查询。 For example find
MAX(DocumentDate)
: 例如,找到
MAX(DocumentDate)
:
SELECT DocumentNumber, Code, SoldPuncte, DocumentDate
from yourTable a inner join
(SELECT DocumentNumber, Code, SoldPuncte, MAX(DocumentDate) as
DocumentDate
from yourTable group by DocumentNumber) b
on a.DocumentNumber=b.DocumentNumber and a.DocumentDate = b.DocumentDate
If you need last date per code then try this one 如果您需要每个代码的最后日期,请尝试这个
SELECT Code, MAX(DocumentDate)
FROM table
GROUP BY Code
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