title: How to generate data model diagram from Oracle sql developer
body: <p>I want to generate a data model diagram from an existing oracle database. </p>
  
  <p>I've tried to use SQL Developer 3.2.20.09 and followed the steps in another <strong><a href="https://stackoverflow.com/questions/6580529/how-to-generate-e-r-diagram-using-oracle-sql-developer">post</a></strong> and the <strong><a href="http://download.oracle.com/otn_hosted_doc/sqldev/ImportDataModel/importdatamodel_viewlet_swf.html" rel="nofollow noreferrer">demonstration</a></strong> of oracle. </p>
  
  <p>But I didn't succeed. It's a little strange because I can see <strong>all the other types of objects except tables.</strong></p>
  
  <p>Here is <strong>my steps:</strong>
  File -> Data Modeler -> Import -> Data Dictionary -> current database connection -> Next -> Current Schema -> Next</p>
  
  <p><img src="https://i.stack.imgur.com/0WzWV.png" alt="there is no tables displayed"></p>
  
  <p>Do you have any idea? </p>
  
  <p>Thanks in advance.</p>
  
  <p><strong>EDIT:</strong></p>
  
  <p>I think it's a specific problem in my database. <strong>I can't figure it out with SQL Developer.
  Finally, I've used TOAD Data Modeler to generate E/R diagram.</strong></p>