SQLite select where all columns are not null
<p>I have column1, column2, column3, column4, column5 and so on. </p>

<p>If I know that one column is not null, I can use this query:</p>

<pre><code>SELECT * 
FROM table 
WHERE columnA IS NOT NULL;
</code></pre>

<p>But now I want to select rows where all the columns are not null.</p>

<p>How to write is query easily?</p>