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标题: 用asp.net程序备份或还原SQLServer [打印本页]

作者: lbsong 时间: 2008-11-5 16:13
标题: 用asp.net程序备份或还原SQLServer
主要是利用SQL Server提供的SQL语句来实现备份的。
备份：use master;backup database @name to disk=@path;
恢复：use master;restore database @name from disk=@path;
上面用的是参数化SQL语句，可以在程序执行的时候动态给参数赋值。

.aspx代码：

以下为引用的内容：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="DatabaseAction.aspx.cs" Inherits="DatabaseAction" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>无标题页</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<table border="0" width="100%">
<tr><td colspan="2">数据库还原和备份</td></tr>
<tr><td>请选择数据库</td><td>
      <asp:DropDownList ID="ddlDatabaseList" runat="server">
      </asp:DropDownList></td></tr>
<tr><td>
      数据库文件名</td><td>
      <asp:TextBox ID="txtDbFileName" runat="server"></asp:TextBox></td></tr>
<tr><td>
      操作选项</td><td>
      <asp:RadioButton ID="rbBackup" runat="server" Checked="True" GroupName="action" Text="备份" />
      <asp:RadioButton ID="rbRestore" runat="server" GroupName="action" Text="还原" /></td></tr>
      <tr><td>
      操作</td><td>
         <asp:Button ID="btnOK" runat="server" OnClick="btnOK_Click" Text="执行" /></td></tr>
</table>
</div>
</form>
</body>
</html>

.cs代码

以下为引用的内容：
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;

作者: lbsong 时间: 2008-11-5 16:13
标题: 用asp.net程序备份或还原SQLServer
以下为引用的内容：
/// <summary>
/// 功能说明：本例中演示在asp.net中如何备份和恢复数据库
/// 备份数据库主要使用数据库的备份语句。数据库备份文件放在
/// App_Data文件夹下。
/// 作者：周公
/// 日期：2008-08-19
/// 首发地址：http://blog.csdn.net/zhoufoxcn/archive/2008/08/19/2796077.aspx
/// </summary>
public partial class DatabaseAction : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
      if (!Page.IsPostBack)
      {
         //在DropDownList中绑定所有数据库
         SqlConnection connection = new SqlConnection("Data Source=ZHOUFOXCN;User ID=sa;Password=sa");
         SqlCommand command = new SqlCommand("sp_helpdb", connection);
         command.CommandType = CommandType.StoredProcedure;
         connection.Open();
         SqlDataReader reader = command.ExecuteReader();
         ddlDatabaseList.DataSource = reader;
         ddlDatabaseList.DataTextField = "Name";
         ddlDatabaseList.DataBind();
         reader.Close();
         connection.Close();
      }
}
protected void btnOK_Click(object sender, EventArgs e)
{
      string dbFileName = txtDbFileName.Text.Trim();
      SqlConnection connection = new SqlConnection("Data Source=ZHOUFOXCN;User ID=sa;Password=sa");
      string dbName = ddlDatabaseList.SelectedValue;
      if (!dbFileName.EndsWith(".bak"))
      {
         dbFileName += ".bak";
      }
      if (rbBackup.Checked)//备份数据库
      {
         SqlCommand command = new SqlCommand("use master;backup database @name to disk=@path;",connection);
         connection.Open();
         string path=Server.MapPath("~\\App_Data")+"\\"+dbFileName;
         command.Parameters.AddWithValue("@name", dbName);
         command.Parameters.AddWithValue("@path", path);
         command.ExecuteNonQuery();
         connection.Close();
      }
      else//恢复数据库
      {
         SqlCommand command = new SqlCommand("use master;restore database @name from disk=@path;", connection);
         connection.Open();
         string path = Server.MapPath("~\\App_Data") + "\\" + dbFileName;
         command.Parameters.AddWithValue("@name", dbName);
         command.Parameters.AddWithValue("@path", path);
         command.ExecuteNonQuery();
         connection.Close();
      }
}
}

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