Dear PF Forum, Happy New Year. This forum is very, very useful, helpful and elegant. Heavily moderated. I find this thread: https://www.physicsforums.com/threads/give-credit-to-the-mentors.848493/ [Broken] As many of you might know. I just realize that to thank every mentors that alread answer our questions is very difficult. Perhaps if it's not against the rule, we can query PF Forum. For example: Which threads that I, as a starter, have a particular mentor (or advisor or insight author) has replied. Perhaps I can't express myself clearly. But this what I might have done. Supposed: ThreadTable is the thread table and PostTable is the posting inside the ThreadTable, PostTable is many to one relationship with ThreadTable. Supposed I want to find how many threads that Janus have replied to my thread. Code (Text): select ThreadTable.ThreadTitle from ThreadTable inner join PostTable on PostTable.ThreadId = ThreadTable.ThreadId where (ThreadTable.Starter = MyUserName) and (PostTable.MemberName = "Janus") group by ThreadTable.ThreadTitle I know that this is highly illegal for any member to do such query like this in SQL and accessing PF server. It's just that I just remember something with my thread. https://www.physicsforums.com/threads/hydrogen-ion-antioxidant.850337/ I remember "ByStander" name. He/She has many times replied my thread. And I forgot to thank him/her in Give Credit to Mentors. Not that I want every member can query PF server, perhaps if there is a dialog box for us to display just our own thread that has particular member who posted in it.