title: Google Sheet columns comparison several conditions
body: <p>I need to compare columns <strong>E</strong> and <strong>F</strong>
  The result should be in column <strong>L</strong></p>
  <p><code>=SI(E2=F2; &quot;Oui&quot;; &quot;Non&quot;)</code></p>
  <p><code>SI(OU(E2=&quot;&quot;;E2=0); &quot;&quot;)</code></p>
  <p>I don't know how to merge the two above formulas?</p>
  <p>If the cell is empty or equal 0, nothing should be displayed in cell <strong>L2</strong>, if <code>E2=F2</code> it should say &quot;Oui&quot; otherwise &quot;Non&quot;</p>
  <p>Also if <strong>F2</strong> is empty <strong>L2</strong> should be empty too...</p>
  <p><a href="https://i.stack.imgur.com/wLBLO.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/wLBLO.png" alt="enter image description here" /></a></p>