title: MySQL stored procedure - How to Return Nothing
body: <p>I have a stored procedure SP1 that calls another stored procedure SP2 like so:</p>
  
  <pre><code>CREATE PROCEDURE SP1()
  BEGIN
      CALL SP2();
  END
  </code></pre>
  
  <p>The SP2 stored proc returns a row from a table, but I don't want SP1 to return anything. I tried declaring a dummy variable and ending SP1() with something like "SELECT 0 INTO dummy", but nothing seems to work...</p>
  
  <p>Is there simple way to make SP1 not return the row from SP2?</p>