title: How to ExecuteAsync in Dapper when doing an Oracle INSERT ALL
body: <p>I have the following SQL command (simplified) assigned to the var <code>sql</code>:</p>
  
  <pre class="lang-sql prettyprint-override"><code>INSERT ALL
      INTO ORACLETBL (COL_A,COL_B) VALUES ('A','B')
      INTO ORACLETBL (COL_A,COL_B) VALUES ('C','D')
  SELECT * FROM dual;
  </code></pre>
  
  <p>When I do a <code>conn.Execute(sql);</code> in a <code>void</code> method, the command works correctly.</p>
  
  <p>When I do an <code>await conn.ExecuteAsync(sql);</code> in an <code>async Task</code> method, against the exact same SQL command, I get the exception "ORA-00933: SQL command not properly ended".</p>
  
  <p>Is it obvious to anyone what I'm doing wrong?</p>