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      备份SqlServer数据库:
  backup database 数据库名 to disk (备份文件存放路径+文件名).bak

  还原SqlServer数据库:
  
string path = this.FileUpload1.PostedFile.FileName; //获得备份路径及数据库名称
  use master restore database 数据库名 from disk='" + path + "'"; )


using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Collections;
using System.Data.Sql;
using System.IO;


namespace 数据库备份
{
   
public partial class Form1 : Form
    {
       
//需要添加一个引用C:\Program Files\Microsoft SQL Server\80\Tools\Binn下的SQLDMO.DLL;
       
//SQL默认安装下是在以上路径
       
//备份的文件放在C:\Program Files\Microsoft SQL Server\MSSQL\BACKUP下
        string ServerName = "";
       
string UserName = "sa";//暂时锁定,可以根据需要自己设置
        string Password = "sa";
     
       
public Form1() { InitializeComponent(); } //获取服务器列表
        public ArrayList GetServerList()
        {
            ArrayList alServers
= new ArrayList();
         
            SQLDMO.Application sqlApp
= new SQLDMO.ApplicationClass();
           
try
            {
                SQLDMO.NameList serverList
= sqlApp.ListAvailableSQLServers();
               
for (int i = 1; i <= serverList.Count; i++)
                {
                    alServers.Add(serverList.Item(i));
                   
//comboBox1.Items.Add(serverList.Item(i));
                    listBox1.Items.Add(serverList.Item(i));
                   
                }
            }
           
catch (Exception e)
            {
               
throw (new Exception("取数据库服务器列表出错:" + e.Message));
            }
           
finally
            {
                sqlApp.Quit();
            }
           
return alServers;
        }
       
//获取数据库列表
        public ArrayList GetDbList(string strServerName, string strUserName, string strPwd)
        {
           
string ServerName = strServerName;
           
string UserName = strUserName;
           
string Password = strPwd;

            ArrayList alDbs
= new ArrayList();
            SQLDMO.Application sqlApp
= new SQLDMO.ApplicationClass();
            SQLDMO.SQLServer svr
= new SQLDMO.SQLServerClass();
           
try
            {
                svr.Connect(ServerName, UserName, Password);
               
foreach (SQLDMO.Database db in svr.Databases)
                {
                   
if (db.Name != null)
                        alDbs.Add(db.Name);
                    listBox2.Items.Add(db.Name);
                }
            }
           
catch (Exception e)
            {
                MessageBox.Show(
"连接数据库出错:" + e.Message);
            }
           
finally
            {
                svr.DisConnect();
                sqlApp.Quit();
            }
           
return alDbs;
        }
       
//备份数据
        public bool BackUPDB(string strDbName, string strFileName, ProgressBar pgbMain)
        {
            ProgressBar PBar
= pgbMain;
            SQLDMO.SQLServer svr
= new SQLDMO.SQLServerClass();
           
try
            {
                svr.Connect(ServerName, UserName, Password);
                SQLDMO.Backup bak
= new SQLDMO.BackupClass();
                bak.Action
= 0;
                bak.Initialize
= true;
                SQLDMO.BackupSink_PercentCompleteEventHandler pceh
= new SQLDMO.BackupSink_PercentCompleteEventHandler(Step);
                bak.PercentComplete
+= pceh;
                bak.Files
= strFileName;//这里可以写成路径+文件名形式,自己写!
                bak.Database = strDbName;
                bak.SQLBackup(svr);
               
return true;
            }
           
catch (Exception err)
            {
               
throw (new Exception("备份数据库失败" + err.Message));
            }
           
finally
            {
                svr.DisConnect();
            }
        }
       
//进度条
        private void Step(string message, int percent)
        {
            PBar.Visible
= true;
            PBar.Value
= percent;
        }

//还原数据
        public bool RestoreDB(string strDbName, string strFileName, ProgressBar pgbMain)
        {
            ProgressBar PBar
= pgbMain;
            SQLDMO.SQLServer svr
= new SQLDMO.SQLServerClass();
           
try
            {
                svr.Connect(ServerName, UserName, Password);
                SQLDMO.QueryResults qr
= svr.EnumProcesses(-1);
               
int iColPIDNum = -1;
               
int iColDbName = -1;
               
for (int i = 1; i <= qr.Columns; i++)
                {
                   
string strName = qr.get_ColumnName(i);
                   
if (strName.ToUpper().Trim() == "SPID")
                    {
                        iColPIDNum
= i;
                    }
                   
else if (strName.ToUpper().Trim() == "DBNAME")
                    {
                        iColDbName
= i;
                    }
                   
if (iColPIDNum != -1 && iColDbName != -1)
                       
break;
                }

               
for (int i = 1; i <= qr.Rows; i++)
                {
                   
int lPID = qr.GetColumnLong(i, iColPIDNum);
                   
string strDBName = qr.GetColumnString(i, iColDbName);
                   
if (strDBName.ToUpper() == strDbName.ToUpper())
                        svr.KillProcess(lPID);
                }

                SQLDMO.Restore res
= new SQLDMO.RestoreClass();
                res.Action
= 0;
                SQLDMO.RestoreSink_PercentCompleteEventHandler pceh
= new SQLDMO.RestoreSink_PercentCompleteEventHandler(Step);
                res.PercentComplete
+= pceh;
                res.Files
= strFileName;//可以写成路径+文件名

                res.Database
= strDbName;
                res.ReplaceDatabase
= true;
                res.SQLRestore(svr);
               
return true;
            }
           
catch (Exception err)
            {
               
throw (new Exception("恢复数据库失败,请关闭所有和该数据库连接的程序!" + err.Message));
            }
           
finally
            {
                svr.DisConnect();
            }
        }

       
private void Form1_Load(object sender, EventArgs e)
        {
            GetServerList();
           
string ServerName = "(local)";//这里根据需要自己可以设置成动态的
            GetDbList(ServerName, UserName, Password);
        }
       
//根据选择的服务器,列出数据库
        private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
        {   
//这里可以动态设置服务器名,角色名,密码
           
//string ServerName = listBox1.SelectedItem.ToString();
           
//GetDbList(ServerName, UserName, Password);
          
        }

       
private void SelectPath_Click(object sender, EventArgs e)
        {
           
//选择保存路径
           
//if (folderBrowserDialog1.ShowDialog(this) == DialogResult.OK)
           
//{
           
//    string path = folderBrowserDialog1.SelectedPath + "\\";
           
//    txtPath.Text = path;
              
           
//}
           
//else
           
//{
           
//   folderBrowserDialog1.Dispose();
           
//}
        }
       
//备份按钮
        private void btnSave_Click(object sender, EventArgs e)
        {
           
string strDbName = "db_bookmanage";
            txtSaveName.Text
= DateTime.Now.ToString("yyyyMMddhhmmss");
           
string strFileName = txtSaveName.Text.ToString().Trim();
           
if (BackUPDB(strDbName, strFileName, PBar))
            {
                PBar.Visible
= false;
                MessageBox.Show(
"备份完成!");
            }
          
        }
       
//查看历史备份按钮
        private void button2_Click(object sender, EventArgs e)
        {
            listBox3.Items.Clear();
           
string[] files = Directory.GetFiles(@"C:\Program Files\Microsoft SQL Server\MSSQL\BACKUP");
           
foreach (string file in files)
                listBox3.Items.Add(file.Substring(file.LastIndexOf(
"\\") + 1, file.Length - file.LastIndexOf("\\") - 1));
        }
       
//还原数据按钮
        private void button1_Click(object sender, EventArgs e)
        {
            PBar.Visible
= true;
           
string strDbName = "db_bookmanage";
           
//txtSaveName.Text = DateTime.Now.ToString("yyyyMMddhhmmss");
            if (txtReName.Text == "")
            {
                MessageBox.Show(
"请选择一个要还原的文件!");
               
return;
            }
           
string strFileName = txtReName.Text.ToString().Trim();
           
if (RestoreDB(strDbName, strFileName, PBar))
            {
                PBar.Visible
= false;
                MessageBox.Show(
"还原完成!");
            }
        }
       
//历史备份文件名
        private void listBox3_SelectedIndexChanged(object sender, EventArgs e)
        {
            txtReName.Text
= listBox3.SelectedItem.ToString();
        } 
       
    }
}

posted on 2011-08-19 12:22  薄祥雷  阅读(323)  评论(0编辑  收藏  举报