How to insert image into database ? ( on live server )

Images and videos are streams of bytes: so the only available SQL storage type is VARBINARY, so if it's giving you a problem, then you need to look for a better approach.

And to be honest, the whole idea of video storage in an SQL database is a poor idea from so many, many aspects that it's hard to see any good points at all other than "I know how to do that".
Pictures are generally quite large and videos? Huge. Loads of bandwidth needed to transfer them between any two parts of a system.

It is always going to be slow: you have the network traffic between the web server backend code and the SQL Server DB computer, the memory allocation on the DB server, the disk write on eth DB server, and probably the file allocation increase on the DB server to contend with just on writes.
On read, you have memory allocation on the DB server, network traffic, memory allocation on the back end server, internet traffic to the browser, and memory allocation in the browser as well.

You want a better idea?
Store the video data as a file in a folder the back end code can access, and store the path to the file in SQL.
You can then stream directly from the file to the browser and avoid 90% of the bottle necks...