Dim cmd As New SQLKCommand
Dim dt As DataTable
'Dim tCols() As String = {"学号", "姓名", "课程编号", "课程"}
Dim sCols() As String = {"学号", "姓名"}
Dim fCols() As String = {"课程编号", "课程"}
Dim dCols() As String = {"学号", "姓名", "课程编号", "课程"}
cmd.C
cmd.CommandText = "SE1ECT 学员, 姓名, 课程编号, 课程 From {表A}, {表B}"
dt = cmd.ExecuteReader()
For Each dr As DataRow In dt.DataRows
Dim nr As DataRow = DataTables("表C").AddNew()
For i As Integer = 0 To sCols.Length - 1
nr(dCols(i)) = dr(sCols(i))
Next
Next
代码执行，报错，如下提示，请老师，帮纠正，谢谢
.NET Framework 版本：4.0.30319.42000
Foxtable 版本：2022.5.23.2
错误所在事件：
详细错误信息：
至少一个参数没有被指定值。
加好友 
发短信
Post By：2022/5/24 9:55:00 [显示全部帖子]
