Remove specified folders form mysql

Hy, i need to remove a folder from my mysql database because it take to much place, its phpmyadmin, i have disabled logging for that folder, anyone can give me a mysql query to remove that ?

For example i want to remove all entries that have "http://somesite.com/phpmyadmin" as url, from the databse, the entries are located in the main website i cannot delete the entire website i need to delete just these entries, its possible to do that ?

Thanks in advance.