以文本方式查看主题 - Foxtable(狐表) (http://foxtable.net/bbs/index.asp) -- 专家坐堂 (http://foxtable.net/bbs/list.asp?boardid=2) ---- [求助]两表判断是否重复添加新表 (http://foxtable.net/bbs/dispbbs.asp?boardid=2&id=77277) |
-- 作者:vvfree -- 发布时间:2015/11/15 0:11:00 -- [求助]两表判断是否重复添加新表 比如有 表(A ) 表(B ) ,表(C) 想用”表(B)“行 判断 ”表(A)“的数据行是否重复,把表(B)不重复 “表(A)”的行添加到 “表(C)” |
-- 作者:大红袍 -- 发布时间:2015/11/15 10:32:00 -- Dim Cols1() As String = {"来源列一","来源列二","来源列三"} Dim Cols2() As String = {"接收列一","接收列二","接收列三"} For Each dr1 As DataRow In DataTables("表B").Select("") Dim dr2 As DataRow = DataTables("表A").find("第一列 = \'" & dr1("第一列") & "\'") If dr2 Is Nothing Then dr2 = DataTables("表C").AddNew For i As Integer = 0 To Cols1.Length -1 dr2(Cols2(i)) = dr1(Cols1(i)) Next End If Next |