Access分享--用代码实现更新序号与计数ADO与DAO

时　间:2016-06-27 09:04:07
作　者:杜超   ID：16058  城市：江阴
摘　要:帮爱好者做的小示例，如下图
正　文:

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Private Sub 更新计数_Click()
    Dim rst As Object

    Set rst = CurrentDb.OpenRecordset("更新计数", dbOpenDynaset)
         rst.MoveFirst
  
    Do Until rst.EOF
        rst.Edit
        rst!计数 = DCount("*", "更新计数", "DKH='" & rst!dkh & "'")
        rst.Update
        rst.MoveNext
    Loop
    rst.Close
    Set rst = Nothing
    DoCmd.OpenTable "更新计数"

End Sub

Private Sub 清空计数_Click()
    CurrentDb.Execute "update 更新计数 set 计数=null"
    DoCmd.OpenTable "更新计数"
End Sub

Private Sub 更新序号_Click()
    Dim rst As Object
    Dim strSQL As String
    Dim i As Integer
    strSQL = "select * from 更新序号 order by 面积"
    Set rst = CurrentDb.OpenRecordset(strSQL, dbOpenDynaset)
        rst.MoveFirst
    Do Until rst.EOF
        rst.Edit
        rst!序号 = i + 1
        i = rst!序号
        rst.Update
        rst.MoveNext
    Loop
    rst.Close
    Set rst = Nothing
    DoCmd.OpenTable "更新序号"

End Sub

Private Sub 清空序号_Click()
    CurrentDb.Execute "update 更新序号 set 序号=null"
    DoCmd.OpenTable "更新序号"
End Sub