技术开发 频道

SQL Server数据库在ASP.NET中的备份

  【IT168 技术文档】前言:我们在开发网站时,在管理后台,管理员通常要定期对数据库进行备份(当然也可以让sqlserver服务器定期自动备份,但我此处讲的是asp.net中的备份),备份的代码很简单:

  下面是我做一个网站后台时在“备份”按扭下写的一个事件:

protected void Button1_Click(object sender, EventArgs e)

...{

      
string newname = "WebJake" + DateTime.Now.Year.ToString() + DateTime.Now.Month.ToString() + DateTime.Now.Day.ToString() + DateTime.Now.Hour.ToString()+".bak";

      SqlConnection cn
= DB.createCon();

      
string nepath=Server.MapPath("../../DataBack/")+newname;

      
string sql = "BACKUP DATABASE WebJake to DISK ='"+nepath+"'";

      SqlCommand cmd
= new SqlCommand(sql,cn);

      
try

      ...{

            cn.Open();

            cmd.ExecuteNonQuery();

            HyperLink1.Text
= "已成功备份到服务器路径:" + nepath+" 请点击下载到本地!";

            HyperLink1.NavigateUrl
= "../../DataBack/"+newname;

            HyperLink1.Visible
= true;

      }

      
catch (Exception ex)

      ...{

            
string exm = ex.Message;

            Label1.Text
= "备份数据库出错,该文件可能不存在!";

            Label1.Visible
= true;

      }

      
finally

      ...{

            cmd.Dispose();

            cn.Close();

            cn.Dispose();

      }

}

 

  当然最关键的还是这句:

  BACKUP DATABASE WebJake to DISK ='您要保存的路径'

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