Deborah Melkin shows us how to see if a particular statistic is in use:

You know those tweets that you see once but can never find again? I remember seeing one a while ago where someone tweeted to #sqlhelp asking if the internal inserted and deleted tables had statistics or if they were like table variables, which didn’t.

This is a great question in general. But then it got me thinking – how do you prove this? I wanted to know the answer as well so I decided to look into this. And I went down the wrong sort of rabbit hole trying to figure this out. Eventually I talked to a friend about this and got pointed in the right direction…

And the answer to how you find which statistics are used is…?

Read on for the answer and several examples.