Search on the related table or record

Dear Experts,

I have a requirement where I have to Search the Request where certain comments have been made.

There can be multiple comments for a Given request number hence I'm using two table "Request" and "Comments" with flat relation where comment table contains requestNumber field to create the relation between the two.

Is there any way possible that I can search in the "Request" record with the comments which have made under it. 

Thanks,

Gaurav Singh

  Discussion posts and replies are publicly visible