I have developed a script in asp.net.I brought a windows hosting with plesk cpanel. Now I want to know how can I upload my database in that server.
If your MSSQL server has access to folders of your web application, you can upload the .mdf or backup file via Plesk file manager or FTP and then attach/restore it through MSSQL management studio (of course, you need to connect to your db server first).