title: Toad oracle 10.5
body: <p>my issue is the compiling was working fine and then suddenly the
  compile started taking too long time ...
  and then after few mins i get
  this error :</p>
  <pre><code>[Error] ORA-04021 (0: 0): ORA-04021: timeout occurred while waiting to lock object ..(procedure name ) 
  </code></pre>