目标:根据字段'DOCURL'和'ELEMENT'获取不同的值。使用行号时选择不同的行
注:(editted)以下为不应该在SQL
问题在.aspx页面上使用的:如果我作为一个独立的查询,我得到14行,这是正确运行;
Select DISTINCT DOCURL, ELEMENT From TblReference Where Property= 'XYZ'
我的代码拉起来34,我已经将Row_Number更改为DENSE_RANK,但仍然不能下降到14;
Select * from(Select DISTINCT DOCURL, ELEMENT,
DENSE_RANK() over (order by id desc) As rn From TblReference
Where Property= 'XYZ') as t Where rn = 1
***该rn在一个可变循环中正常计数到10。
参考:sql query distinct with Row_Number -
SELECT distinct id, DENSE_RANK() OVER (ORDER BY id) AS RowNum
FROM table
WHERE fid = 64
MySQL不支持窗口功能! – sagi
代码工作现场栏上删除不同,在.NET代码中,它通常是它开始...对于i = 1到10 sSQL =“Select * from(Select id,DOCURL,VFMDISCIPLINEELEMENT,row_number()over (order by id desc)As String From TblData Where UPRN ='“&Session.Item(”pUPRN“)。ToString&”')as t其中rn =“&i&”“ dsNames.SelectCommand = sSQL – indofraiser