Importing from Excel to SQL Server c#

c# excel import-from-excel sqlbulkcopy sql-server

Question

I am trying to import data from an Excel file to a table in SQL Server but it is throwing errors.

            string ssqltable = "mytable";

        string myexceldataquery = "select * from [Order Form$]";
        try
        {
            string sexcelconnectionstring = @"provider=microsoft.jet.oledb.4.0;Persist Security Info=False;data source='C:\Users\usiddiqui\Desktop\myexcel.xlsx';extended properties=" + "\'excel 12.0;hdr=yes;\';";
            string ssqlconnectionstring = "server=SANJSQL-DEV;Database=db; User Id=user; Password=pass;";

            string sclearsql = "delete from " + ssqltable;
            SqlConnection sqlconn = new SqlConnection(ssqlconnectionstring);
            SqlCommand sqlcmd = new SqlCommand(sclearsql, sqlconn);
            sqlconn.Open();
            sqlcmd.ExecuteNonQuery();
            sqlconn.Close();
            OleDbConnection oledbconn = new OleDbConnection(sexcelconnectionstring);
            OleDbCommand oledbcmd = new OleDbCommand(myexceldataquery, oledbconn);
            oledbconn.Open();
            OleDbDataReader dr = oledbcmd.ExecuteReader();
            SqlBulkCopy bulkcopy = new SqlBulkCopy(ssqlconnectionstring);
            bulkcopy.DestinationTableName = ssqltable;
            bulkcopy.BatchSize = 100;
            bulkcopy.WriteToServer(dr);
            //while (dr.Read())
            //{
            //    bulkcopy.WriteToServer(dr);
            //}
            dr.Close();
            oledbconn.Close();
            label1.Text = "File imported into sql server."; 
        }
        catch (Exception ex)
        {
            //handle exception 
        }

the error comes on oledbconn.Open(); this is the error

Could not find installable ISAM.

Popular Answer

You're intermixing escape syntaxes. You're using @ to switch into multiline, but then you're using \ to escape. Don't escape the \'s and remove the final \ .

string sexcelconnectionstring = @"provider=microsoft.jet.oledb.4.0;data source=C:\Users\usiddiqui\Desktop\myexcel.xlsx;extended properties=excel 12.0;hdr=yes;";



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