我有一个选择查询的问题。我的目标是选择Excel表中的一些列,并将其复制到我的SQL表中。我有六个colums来复制。当我试图复制因身份列而改变的订单时。选择查询在excel表
这是我的代码;
string path = Server.MapPath(Session["excel_sheet"].ToString());
//Create connection string to Excel work book
string excelConnectionString = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + path + ";Extended Properties=Excel 12.0;Persist Security Info=False";
//Create Connection to Excel work book
OleDbConnection excelConnection = new OleDbConnection(excelConnectionString);
//Create OleDbCommand to fetch data from Excel
OleDbCommand cmd2 = new OleDbCommand("Select [column_1],[column_2],[column_3],[column_4],[column_5],[column_6] from [Sheet1$]", excelConnection);
excelConnection.Open();
OleDbDataReader dReader;
dReader = cmd2.ExecuteReader();
SqlBulkCopy sqlBulk = new SqlBulkCopy(con);
//Give your Destination table name
sqlBulk.DestinationTableName = "MYtable";
sqlBulk.WriteToServer(dReader);
excelConnection.Close();
我的表中有这样identity_column,COLUMN_1,COLUMN_2,column_3,column_4,column_5,column_6列。
在excel column_4中拷贝例如字符串后写入sql column_3,它必须写入column_4。我在回答一个问题