title: Insert values from two tables into a third table
body: <p>I have a table <code>t1(id)</code> and table <code>t2(did, ddept, dname)</code>. I want to insert in table
  <code>t3(id</code> from <code>t1</code> and <code>did,ddept,dname</code> from <code>t2)</code>. I am totally stuck at this and need some help.</p>