ASP.NET备份还原数据库

核心技术:
using System.Data.SqlClient;
using System.IO;
string SqlStr1 = "Server=(local);DataBase=master;Uid=sa;Pwd=";
string SqlStr2 = "Exec sp_helpdb";
string SqlStr1 = "Server=(local);database='" + this.DropDownList1.SelectedValue + "';Uid=sa;Pwd=";
string SqlStr2 = "backup database " + this.DropDownList1.SelectedValue + " to disk='" + this.TextBox1.Text.Trim() + ".bak'";

1.前台

<table>
<tr>
<td style=" 100px"><span style="font-size: 9pt">操 作 数 据 库</span></td>
<td><asp:DropDownList ID="DropDownList1" runat="server" Font-Size="9pt" Width="124px"></asp:DropDownList></td>
<td style=" 100px"></td>
</tr>
<tr>
<td style=" 100px"><span style="font-size: 9pt">备份名称和位置</span></td>
<td style=" 100px"><asp:TextBox ID="TextBox1" runat="server" Font-Size="9pt" Width="117px"></asp:TextBox></td>
<td style=" 100px"><span style="font-size: 9pt; color: #ff3300">（如D:\beifen）</span></td>
</tr>
<tr>
<td colspan="3"><asp:Button ID="Button1" runat="server" Font-Size="9pt" OnClick="Button1_Click" Text="备份数据库" /></td>
</tr>
</table>

2.后台

using System.Data.SqlClient;
using System.IO;

public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
string SqlStr1 = "Server=(local);DataBase=master;Uid=sa;Pwd=";
string SqlStr2 = "Exec sp_helpdb";
SqlConnection con = new SqlConnection(SqlStr1);
con.Open();
SqlCommand com = new SqlCommand(SqlStr2, con);
SqlDataReader dr = com.ExecuteReader();
this.DropDownList1.DataSource = dr;
this.DropDownList1.DataTextField = "name";
this.DropDownList1.DataBind();
dr.Close();
con.Close();
}
}
protected void Button1_Click(object sender, EventArgs e)
{
string SqlStr1 = "Server=(local);database='" + this.DropDownList1.SelectedValue + "';Uid=sa;Pwd=";
string SqlStr2 = "backup database " + this.DropDownList1.SelectedValue + " to disk='" + this.TextBox1.Text.Trim() + ".bak'";
SqlConnection con = new SqlConnection(SqlStr1);
con.Open();
try
{
if (File.Exists(this.TextBox1.Text.Trim()))
{
Response.Write("<script language=javascript>alert('此文件已存在，请从新输入！');location='Default.aspx'</script>");
return;
}
SqlCommand com = new SqlCommand(SqlStr2, con);
com.ExecuteNonQuery();
Response.Write("<script language=javascript>alert('备份数据成功！');location='Default.aspx'</script>");
}
catch (Exception error)
{
Response.Write(error.Message);
Response.Write("<script language=javascript>alert('备份数据失败！')</script>");
}
finally
{
con.Close();
}
}
}

还原SqlServer
核心技术:
string SqlStr1 = "Server=(local);database='" + this.DropDownList1.SelectedValue + "';Uid=sa;Pwd=";
string SqlStr2 = "use master restore database " + dbname + " from disk='" + path + "'";

1.前台
<table>
<tr>
<td style=" 100px; height: 21px"><span style="font-size: 9pt">操作 数 据 库</span></td>
<td><asp:DropDownList ID="DropDownList1" runat="server" Font-Size="9pt" Width="124px"></asp:DropDownList></td>
<td style=" 100px; height: 21px"></td>
</tr>
<tr>
<td style=" 100px"><span style="font-size: 9pt">操 作 数 据 库</span></td>
<td style=" 100px"><asp:FileUpload ID="FileUpload1" runat="server" Font-Size="9pt" Width="190px" /></td>
<td style=" 100px">
</td>
</tr>
<tr>
<td colspan="3"><asp:Button ID="Button1" runat="server" Font-Size="9pt" OnClick="Button1_Click" Text="还原数据库" /></td>
</tr>
</table>
2.后台

using System.Data.SqlClient;
using System.IO;

public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
string SqlStr1 = "Server=(local);DataBase=master;Uid=sa;Pwd=";
string SqlStr2 = "Exec sp_helpdb";
SqlConnection con = new SqlConnection(SqlStr1);
con.Open();
SqlCommand com = new SqlCommand(SqlStr2, con);
SqlDataReader dr = com.ExecuteReader();
this.DropDownList1.DataSource = dr;
this.DropDownList1.DataTextField = "name";
this.DropDownList1.DataBind();
dr.Close();
con.Close();
}
}

protected void Button1_Click(object sender, EventArgs e)
{

        string path = this.FileUpload1.PostedFile.FileName; //获得备份路径及数据库名称
        string dbname = this.DropDownList2.SelectedItem.Value;
        string SqlStr1 = "Server=.;database=master;Uid=sa;Pwd=";
        string SqlStr2 = "use master restore database " + dbname + " from disk='" + path + "'";
        string SqlStr3 = "exec killspid 'TW_ZLGD'";
        SqlConnection con = new SqlConnection(SqlStr1);
        con.Open();
        try
        {
            SqlCommand com2 = new SqlCommand(SqlStr3, con);
            com2.ExecuteNonQuery();
            SqlCommand com = new SqlCommand(SqlStr2, con);
            com.ExecuteNonQuery();
            MessageBox.Show(this, "还原数据成功!");
        }
        catch (Exception error)
        {
            MessageBox.Show(this, "还原数据失败! 原因:"+error.Message);
        }
        finally
        {
            con.Close();
        }

}

需要在master数据库下建立个名字为"killspid"的存储过程

CREATE proc killspid (@dbname varchar(20))     
as     
begin     
declare @sql nvarchar(500)     
declare @spid int    
set @sql='declare getspid cursor for select spid from sysprocesses where dbid=db_id('''+@dbname+''')'     
exec (@sql)     
open getspid     
fetch next from getspid into @spid     
while @@fetch_status <>-1     
begin     
exec('kill '+@spid)     
fetch next from getspid into @spid     
end     
close getspid     
deallocate getspid     
end
GO

本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/yytt123622/archive/2009/01/14/3765641.aspx