title: How do I count multiple columns in SQL Server?
body: <p>I have a table like this:</p>
  
  <p><img src="https://i.stack.imgur.com/SBBB4.png" alt="enter image description here"></p>
  
  <p>How do I count rows that have identical values in columns A,B,C,D ?</p>
  
  <p>The column 'ID' will be ignored. </p>
  
  <p>For this case, the count result is 2. </p>