title: Oracle insert script with condition
body: <p>I have sql insert script like below</p>
  
  <pre><code>insert into table......from table2.;
  
  drop table2.....;
  drop table3....;
  
  commit;
  </code></pre>
  
  <p>is it possible to do condition "insert" must be success before proceed with "drop table2 and table3" in oracle?</p>