title: Datatype in sql developer is opaque
body: <p>So I am debugging a part of my code. I created datatype called array2D. which is a table of number_array which is table of number.</p>
  
  <pre><code>create or replace type NUMBER_ARR is table of NUMBER;
  create or replace TYPE ARRAY2D AS TABLE OF NUMBER_ARR;
  </code></pre>
  
  <p>I compile both types for debug and after doing so i am able to see each row of the table. But not individual elements stored in it. Element's type is listed as opaque. I had this for the whole table before I compiled datatype for debug.</p>