title: MYSQL - Update an entire Column
body: <p>I wanted to ask if there is a way to update an entire column with the same value.
  I want to run '0' down a column or '1'.
  I can use a php loop to do it but it will involve multiple DB calls etc.</p>
  
  <p>Hopeing for a SQL statement that can run the same value down an entire mysql column.</p>
  
  <p>cheers</p>