How to upload video in database?

It is not a good practice to save large sized files (like video,documents etc) in database (as binary or varbinary). Instead you upload them to a structured folder outside root and save only the file name(name/path) in the database.

and than follow this link

http://www.aspforums.net/Threads/893229/Display-Youtube-Videos-inside-GridView-using-the-Video-URL-in-Database-in-ASPNet/

or you can use this url if you have any problem

http://www.aspsnippets.com/Articles/Upload-Save-Retrieve-and-Play-MP4-Video-files-with-live-streaming-from-Database-in-ASPNet-using-C-and-VBNet.aspx