SQL request to change media URL

Hello,

I want hosting some of my media on a sub-domain, only a part.

So i’m looking for a SQL request to do this. For example i want to replace :

“https://website.com/wp-content/uploads/2015/04/” by
“https://subdomain.website.com/wp-content/uploads/2015/04”

Thanks and sorry for my bad english ??