Example Data:
Col1 Col2 Col3
a 1 x
a 5 y
c 8 w
d 9 v
结果必须是
Col1 Col2 Col3 Slno
a 1 x 1
a 5 y 2
c 8 w 3
d 9 v 4
答案 0 :(得分:0)
您可以使用此查询,但col1必须是唯一字段
SELECT (select sum(1) from tab1 t where t.col1<=t1.col1 ) AS slno, t1.col1, t1.col2, t1.col3 FROM tab1 AS t1;
对于非唯一字段,您可以使用此
1)模块中的这段代码
Private curNum As Long
Public Function startNum() As Boolean
curNum = 0
startNum = True
End Function
Public Function GetNextNum(anyField) As Long
curNum = curNum + 1
GetNextNum = curNum
End Function
2)查询中的此代码
SELECT DISTINCT *, GetNextNum([AnyField]) AS MyCounter
FROM MyTable
WHERE startNum()=True;
答案 1 :(得分:0)
我正在寻找类似的要求,经过一些研究和试验,我得到了这个: -
Update myTbl SET Slno = DCount("Col2","myTbl","Col2<='" & [Col2] & "'")
您可以使用此查询,但正如您所示,col2应该是唯一字段。