Thank you so much that was the problem Mark(instead of admin i have to use root for db_name)
No there is no space before/after that in wp-config.
And yes I have tried to connect to different databases but same problem arises again and again
I have tried to create a database again in Phpmyadmin but unfortunately same problem comes again and again
What are you suggesting me Mark?
@mark Thank for your reply but I have mistakenly wrote wp-abc above it was the same name which I wanted to mention wp_projcs
