小编JYo*_*sef的帖子

我正在尝试创建一个数据网格并使用VB.NET将内容导出到文本文件,我在SSIS脚本任务中执行此操作,以便自动执行将动态表格导出到文本文件的过程.我没有收到任何错误,文件已创建,但文件为空.

我在这段代码中做错了什么？

Public Sub Main()

    Dim FName As String = "D:\test.TXT"

    ''''''''''''''''''''''''''''''''''''''''''
    If File.Exists(FName) Then
        File.Delete(FName)
    End If
    ''''''''''''''''''''''''''''''''''''''''''

    Dim myConnection As OleDbConnection = New OleDbConnection("Data Source=localhost;Provider=SQLNCLI10;Initial Catalog=AdventureWorksDW2008R2;Integrated Security=SSPI;")
    Dim da As OleDbDataAdapter = New OleDbDataAdapter("Select * from Table")
    Dim ds As DataSet = New DataSet

    da.Fill(ds, "Test")

    Dim DataGrid1 As New DataGrid
    DataGrid1.DataSource = ds.DefaultViewManager
    Dim DataGridView1 As New DataGridView

    DataGridView1.DataSource = ds

    Dim dgvc As DataGridViewCell
    Dim sw As New System.IO.StreamWriter(FName)

    For Each dgvr As DataGridViewRow In DataGridView1.Rows …

我有一个数据库值,当插入到SQL变量中时,最后会显示问号!! 找不到原因？!

declare @A varchar(50) = 'R2300529?'  
select @A

结果: R2300529?

任何解释？我正在使用SQL server 2012.