title: Count and group by Power BI
body: <p>I am beginner at Power BI and I'm trying to group my data by "Opp title" and count the number of rows of dates: </p>
  
  <p><img src="https://i.stack.imgur.com/jHpfe.png" alt="Click here"></p>
  
  <p>The result will be :</p>
  
  <p><img src="https://i.stack.imgur.com/ML2dL.png" alt="Click here"></p>