title: How do I delete the last row(which is all NULLs) in my database?
body: <pre><code>Column1  Column2  Column3  Column4  Column5  Column6
  NULL    NULL     NULL   NULL     NULL     NULL
  </code></pre>
  
  <p>I have tried the following queries:</p>
  
  <p>1.</p>
  
  <pre><code>Delete from tablename where column1 = NULL
  </code></pre>
  
  <p>2.</p>
  
  <pre><code>Delete from tablename where column1 IS NULL
  </code></pre>
  
  <p>The second query completed successfully but it said 0 rows affected.</p>