title: Update specific values in more than one column - SQL
body: <p>I have a table that contains two columns, both have email values.
  I want to create a query that update a specific data in both columns. </p>
  
  <p>For example if I have two records of the email <code>'a@aa.aa'</code> in one column and three records of <code>'a@aa.aa'</code> in the other column I want them both to be updated.<br>
  Here for example I want that all the <code>'g@gg.ggg'</code> will be <code>'a@aa.aa'</code>:</p>
  
  <p><img src="https://i.stack.imgur.com/jCRal.png" alt="enter image description here"></p>
  
  <p>My question is how the query should look like.</p>