difference between this two condition
<p>what is difference in this two condition</p>

<pre><code>return Convert.ToInt32(cmd.ExecuteScalar()) == 1 ? true : false;

return res =! 0 ? true:false;

return Convert.ToInt32(cmd.ExecuteScalar()) &gt; 0 ? true : false;
</code></pre>

<p>what is difference in this three condition when i check the existence of information in the table [mysql]</p>
