WordPress Database got Corrupt

Hi,

Due to improper closing of database my wordpress website database has gone corrupt. Whenever I open the site I see the URL is ending with “<websitename>/wp-admin/install.php”. When I contacted hosting company they replied as below:
“We request you share or upload the listed domain’s databases as .sql file on your domain path. So that we will restore the database and can update you further.”.
I have not taken the database backup. What file I need to check/correct to overcome this issue? What is the resolution here?