.net下执行SQL文件脚本

下面是自己凑的代码，需要建立数据源，可以执行，有没有不需要设置数据源的方法？
因为我这里需要在客户机上执行.sql文件，所以需要一个可以直接执行.SQL的小工具。using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Xml;
using System.Diagnostics;  namespace DoSQL
{
    public partial class FrmSQL : Form
    {
        public FrmSQL()
        {
            InitializeComponent();
        }
        string file=string.Empty;        private void btnQuery_Click(object sender, EventArgs e)
        {
            SelectSQLFile();
        }
        private void SelectSQLFile()
        {
            string fileName = string.Empty;
            string exName = string.Empty;
            this.openFileDialog1.Filter = "SQL 脚本|*.sql";
            if (this.openFileDialog1.ShowDialog() == DialogResult.OK)
            {
                fileName = this.openFileDialog1.FileName;
                exName = Path.GetExtension(fileName);
                if (exName.ToLower() == ".sql")
                {
                    this.txtSQL.Text = fileName;
                    file = fileName;
                }
                else
                {
                    MessageBox.Show("必须选择.sql格式文件！");
                }
            }
 
        }        private void btnLoad_Click(object sender, EventArgs e)
        {
            string SerName = string.Empty;
            string DatName = string.Empty;
            string Sid = string.Empty;
            string Psw = string.Empty;
            if (this.txtServerName.Text == "" && this.txtDataBaseName.Text == "")
            {
                MessageBox.Show("请输入服务器名和数据源名！");
                return;
            }            if (file == "")
            {
                MessageBox.Show("请先选择.sql文件！");
                return;
            }
            try
            {
                SerName = this.txtServerName.Text.ToString().Trim();
                DatName = this.txtDataBaseName.Text.ToString().Trim();
                Sid = this.txtName.Text.ToString().Trim();
                Psw = this.txtPassW.Text.ToString().Trim();
                string sqlQuery = "osql -U " + Sid + " -P " + Psw + " -S " + SerName + " -D " + DatName + " -i  " + file + "";
                //osql方式必须与ODBC数据源合用，所以使用的机器上必须添加ODBC数据源，而且要注意选择默认数据库
                string strRst = ExeCommand(sqlQuery);
                Console.WriteLine(strRst);
                Console.ReadLine();            }
            catch (Exception err)
            {
                MessageBox.Show(err.ToString ());
            }
        }
        public static string ExeCommand(string commandText)
        {
            Process p = new Process();
            p.StartInfo.FileName = "cmd.exe";
            p.StartInfo.UseShellExecute = false;
            p.StartInfo.RedirectStandardInput = true;
            p.StartInfo.RedirectStandardOutput = true;
            p.StartInfo.RedirectStandardError = true;
            p.StartInfo.CreateNoWindow = true;
            string strOutput = null;
            try
            {
                p.Start();
                p.StandardInput.WriteLine(commandText);
                p.StandardInput.WriteLine("exit");
                strOutput = p.StandardOutput.ReadToEnd();
                p.WaitForExit();
                p.Close();
            }
            catch (Exception e)
            {
                strOutput = e.Message;
            }
            return strOutput;
        }  
    }
}