I have a website let’s say mysite.com (with it’s own database that I created through plesk) and i have created a subdomain with the name sub.mysite.com.

After trying to install wordpress on my subdomain, I figured that I can’t create a second database from Pesk as my hosting does no allow this through my subscription.

Can I use the same database that I use at mysite.com also to my subdomain, just creating a new database user, or I will destroy the current database?