title: What will the data be if I insert a C# 'NULL' into a DataBase?
body: <p>I've learned that the <code>DBNull</code> &amp; C# normal <code>null</code> are totally different things and C# treats <code>DBNull.Value</code> as some weird random thing, but what will database treat the C# <code>null</code> as a value?</p>
  
  <p>Will the database treat the C# <code>null</code> as empty or a string or some random things as well?</p>