Regarding Webform Submission

I have a select choice for city selection, country selection in a webform. When the user selects the city and country from webform then clicks submit button. I want set of records from mysql that matches the city and country in the event table to be displayed after the user clicks the submit button. How do i do it? I have webform report also installed in my drupal. But i am not sure how do i do it? Can some one help me regarding this