title: last_ddl_time in dba_objects table Oracle
body: <p>what does column "last_ddl_time" in table "dba_objects"  really mean? what causes the change of the date in this column? </p>
  
  <p>We are testing this as part of change management in Oracle and im not sure what this column really represents. </p>
  
  <p>Thank you in advance!</p>
  
  <p>regards</p>