表A：             提取表A中的【项目名称】中不重复内容填到表B中      表B：

项目名称                                                                               项目名称        

A                                                                                         A

V                                                                                         V

B                                                                                         B

A                                                                                         C

B                                                                                         D

C                                                                                        

D

V

命令该怎么写？

这个命令没有去除重复内容、该怎么修改才能实现提取不重复内容

Dim Cols1() As String = {"装维人员姓名"}
Dim Cols2() As String = {"装维人员姓名"}

For Each dr1 As DataRow In DataTables("投诉工单清单表").Select("")  
    Dim dr2 As DataRow = DataTables("投诉统计表").AddNew()
    For i As Integer = 0 To Cols1.Length -1
        dr2(Cols2(i)) = dr1(Cols1(i))
    Next
Next

有一个字段【外线完成时间】；我想加载该字段时间为今天的数据、以下命令加载不出来。

Dim cmd As New SQLCommand
Dim dt1 As Date
cmd.C
cmd.CommandText = "Select GetDate()"
dt1 = cmd.ExecuteScalar()

DataTables("投诉工单清单表").LoadFIlter =  "外线完成时间 >= \'"& Format(dt1,"yyyy-MM-dd 00:00:00") &"\'  And  外线完成时间 <= \'"& Format(dt1,"yyyy-MM-dd 23:59:59") &"\'   "
DataTables("投诉工单清单表").Load

确定是有的符合条件的内容