title: SQL to_char() printing 2 digit number as 0xx and not touching 3 number digit
body: <p>I'm currently battling with something
  that must be trivial for you.</p>
  
  <p>I have 2 number 191 and 97, and I need to put them in a SQL request, as chars and 97 must be printed as 097.</p>
  
  <p>At first I tried 999, but it added 2 space to my numbers.
  then 099, it does print 097 but it adds a space to it.</p>
  
  <pre><code>to_char(:center, '099') = " 197" and " 097"
  </code></pre>
  
  <p>Where is this space coming from?</p>
  
  <p>Thanks.</p>