将文件上传到SQL Server

Question

改写问题...下面的代码将数据插入SQL Server数据库和正确的表中，但是，数据未正确插入...这是代码

if (FileUpload1.HasFile)
{
    string path = string.Concat((Server.MapPath("~/temp/" + FileUpload1.FileName)));
    FileUpload1.PostedFile.SaveAs(path);

    OleDbConnection OleDbcon = new OleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + path + ";Extended Properties=\"Excel 8.0;HDR=Yes;IMEX=1\";");
    OleDbCommand cmd = new OleDbCommand("select * from [Sheet1$]", OleDbcon);
    OleDbDataAdapter objAdapter1 = new OleDbDataAdapter(cmd);

    OleDbcon.Open();

    DbDataReader dr = cmd.ExecuteReader();
    string con_str = @"Data Source=ENERGYSQL\ENERGY;Initial Catalog=ProjectHandler;Persist Security Info=True;User ID=aconyon;Password=birchall";

    SqlBulkCopy bulkInsert = new SqlBulkCopy(con_str);
    bulkInsert.DestinationTableName = "StockTable";
    bulkInsert.WriteToServer(dr);

    OleDbcon.Close();

    Array.ForEach(Directory.GetFiles((Server.MapPath("~/temp/"))), File.Delete);
    //Label1.ForeColor = Color.Green;
    Label1.Text = "Successfully inserted";
}
else
{
    //Label1.ForeColor = ConsoleColor.Red;
    Label1.Text = "please select ther File";
}

该代码的作用是在我的示例“数量”中选择最右边的列，并将其仅插入数据库中，而忽略所有其他行（A和B），是否需要更改OleDbCommand来选择某些行。 A（商品名称），B（日期），C（数量）

Answer 1

使用此代码。

string excelConnectionString = string.Format("Provider=Microsoft.ACE.OLEDB.12.0;Data
Source={0};Extended Properties='Excel 8.0;HRD=YES;IMEX=1'", 
Server.MapPath(@"~\DownloadedExcelFilesOp4\myfile" + fileExt));// + "\\" +
FileUploadControl.PostedFile.FileName.ToString());
using (OleDbConnection connection = new OleDbConnection(excelConnectionString))
{
   OleDbCommand command = new OleDbCommand(("Select [Demo1] ,[Demo2]  FROM [Sheet1$]"), 
   connection);
   connection.Open();
   using (DbDataReader dr = command.ExecuteReader())
   {
   }
}

Answer 2

您可以使用如下查询来获取任何特定列的值。

OleDbCommand command = new OleDbCommand(("Select [Col1] ,[Col2]  FROM [Sheet1$]"), 
   connection);