title: Set false in specific column to all rows
body: <p>I have a table with the following columns:</p>
  
  <pre><code>ID    Name 
  1     test1
  2     test2
  </code></pre>
  
  <p>Now I added new column <code>IsConfirmed</code>. And this column contain <code>null</code> in all rows.</p>
  
  <pre><code>ID    Name   IsConfirmed
  1     test1     null
  2     test2     null
  </code></pre>
  
  <p>How can I set <code>false</code> to <code>IsConfirmed</code> column to all rows in the table using T-SQL?   </p>
  
  <p>Thanks</p>