ASP.NET备份数据与还原数据，解决数据库正在使用的问题

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备份：
在备份按钮里写：

protected void Button1_Click(object sender, EventArgs e) { string path = "e:\\MAZ数据库备份\\" + Menu+ ".bak"; if (File.Exists(path)) { File.Delete(path);//注意，这个步骤很重要，如果重复，在备份的数据，就会变成， //你刚开始的数据,所以每次都要先删除． 　　　　　　} if (!File.Exists(path)) { FileStream fs = File.Create(path); fs.Close(); } string backupstr="backup database Test to disk='"+path+"';"; SqlConnection con = new SqlConnection("server=localhost;database=Menu;uid=sa;pwd=sa;"); SqlCommand cmd = new SqlCommand(backupstr, con); try { con.Open(); cmd.ExecuteNonQuery(); MessageBox.Show("备份成功！"); connection.Close(); } catch (Exception ex) { string stringError = ex.ToString(); MessageBox.Show("备份失败！"); connection.Close(); } }

还原：
在还原按钮里写：

protected void Button2_Click(object sender, EventArgs e) { string path = "e:\\MAZ数据库备份\\" + Menu+ ".bak"; string connectionStringTest = "server=localhost ;database=master;uid=sa;pwd=sa"; SqlConnection connection = new SqlConnection(connectionStringTest); string backupstr = "restore database Menu from disk='" + path + "';"; try { string sql = "exec killspid '" + Menu+ "'";//这个很关键，要不然就出现题目上的错误了 SqlCommand cmd = new SqlCommand(sql, connection); connection.Open(); cmd.ExecuteNonQuery(); cmd = new SqlCommand(backupstr, connection); cmd.ExecuteNonQuery(); MessageBox.Show("恢复成功！"); connection.Close(); } catch (Exception ex) { string stringError = ex.ToString(); MessageBox.Show("恢复失败！"); connection.Close(); } }

存储过程　killspid

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

以上代码的存储过程是建立数据库master中，必须有master数据的操作权限，否则无效。