using System;
using System.Diagnostics;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            //参数
            string[] args = new string[5];
            args[0] = "-U " + txtUserName.Text; //用户名
            args[1] = "-P " + txtPassword.Text; //用户密码
            args[2] = "-S " + txtServer.Text; //服务器
            args[3] = "-d " + txtDatabase.Text; //数据库
            args[4] = "-i " + AppDomain.CurrentDomain.BaseDirectory + "Install.sql"; //sql脚本路径

            //执行
            textBox1.Text = CommandLine("osql.exe", args);
        }

        #region 调用命令行工具

        /// <summary>
        /// 调用命令行工具
        /// </summary>
        /// <param name="name">命令行工具名称</param>
        /// <param name="args">可选命令行参数</param>
        /// <remarks>注意：所有命令行工具都必须保存于system32文件夹中</remarks>
        /// <returns></returns>
        private string CommandLine(string name, params string[] args)
        {
            return CommandLine(name, "", args);
        }

        /// <summary>
        /// 调用命令行工具
        /// </summary>
        /// <param name="name">命令行工具名称</param>
        /// <param name="workingDirectory">设置工作目录</param>
        /// <param name="args">可选命令行参数</param>
        /// <remarks>注意：所有命令行工具都必须保存于system32文件夹中</remarks>
        /// <returns></returns>
        private string CommandLine(string name, string workingDirectory, params string[] args)
        {
            string returnValue = "";

            using (Process commandline = new Process())
            {
                try
                {
                    commandline.StartInfo.UseShellExecute = false;
                    commandline.StartInfo.CreateNoWindow = true;
                    commandline.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
                    commandline.StartInfo.RedirectStandardOutput = true;
                    commandline.StartInfo.FileName = name;
                    commandline.StartInfo.WorkingDirectory = workingDirectory;
                    //添加命令行参数
                    if (args.Length > 0) commandline.StartInfo.Arguments = string.Join(" ", args);
                    commandline.Start();
                    commandline.WaitForExit();
                    returnValue = commandline.StandardOutput.ReadToEnd();
                    commandline.Close();
                }
                catch
                {
                    commandline.Dispose();
                    throw;
                }
            }

            return returnValue;
        }

        #endregion
    }
}

.NET调用osql.exe执行sql脚本创建表和存储过程