我有一个像这样的表
ex对于每行，我想从Sub SplitandFilterSheet()
' Declare objects
Dim sourceSheet As Worksheet
Dim targetSheet As Worksheet
Dim splitOrderNum As Range
Dim sourceCell As Range
' Declare other variables
Dim sourceSheetName As String
Dim sourceRangeName As String
Dim targetSheetName As String
Dim targetRangeName As String
Dim lastSheetHidden As Boolean
' <<< Customize this >>>
sourceSheetName = "Sum To Line Item"
sourceRangeName = "SplitOrderNum"
targetRangeName = "OrderData"
' Initialize the source sheet
Set sourceSheet = ThisWorkbook.Sheets(sourceSheetName)
' Initialize the range (Add full qualifier to the current workbook, sheet and range)
Set splitOrderNum = sourceSheet.Range(sourceRangeName)
' Get if last sheet is visible in current workbook
lastSheetHidden = Not ThisWorkbook.Sheets(ThisWorkbook.Sheets.Count).Visible
ThisWorkbook.Sheets(ThisWorkbook.Sheets.Count).Visible = True
For Each sourceCell In splitOrderNum
' Copy the source worksheet
sourceSheet.Copy After:=Worksheets(ThisWorkbook.Sheets.Count)
' Rename the new worksheet
Sheets(ThisWorkbook.Sheets.Count).Name = sourceCell.Value
' Reference to the added worksheet
Set targetSheet = ThisWorkbook.Sheets(ThisWorkbook.Sheets.Count)
With targetSheet.Range(targetRangeName)
.AutoFilter Field:=2, Criteria1:="<>" & sourceCell.Value, Operator:=xlFilterValues
.Offset(1, 0).SpecialCells(xlCellTypeVisible).EntireRow.Delete
End With
' Check this next line if this should point to the orderdata range too (?)
targetSheet.AutoFilter.ShowAllData
Next sourceCell
' Return the last sheet visible state
If lastSheetHidden = False Then
ThisWorkbook.Sheets(ThisWorkbook.Sheets.Count).Visible = Not lastSheetHidden
End If
End Sub
中减去Number | Event | Weight
1 4 150
1 4 160
2 5 200
2 4 200
3 6 190
3 6 195
和Weight匹配的另一行的Weight（如果存在）。所需的输出是：
Number这样的操作可行吗？不知道是否相关，最终我将需要将此查询转换为Event。预先感谢。
答案 0 :(得分：1)
可以通过简单地减去联接表中的列来完成。当其中一个操作数为空时，算术运算的结果为空：
select a.Number, a.Event, a.Weight, a.Weight - b.Weight as DIFF
from a
left join b on a.Number = b.Number and a.Event = b.Event
答案 1 :(得分：1)
您需要左联接：
select
t.*,
t.weight - tt.weight diff
from tablename t left join tablename tt
on tt.number = t.number and tt.event = t.event and tt.weight <> t.weight