title: Overload stored procedure in DB2
body: <p>I know, it is possible to overload PLSQL functions and procedures in ORACLE. 
  I tried to overload a procedure in DB2 but was throwing error. Does DB2 restrict this or am I doing something wrong.</p>
  
  <p><strong>Pro 1</strong></p>
  
  <pre><code>CREATE OR REPLACE PROCEDURE  saju_pro (
       s_num1      IN     NUMBER,
       s_num2      IN OUT     NUMBER )
  AS
  BEGIN
      s_num2 := (s_num1+s_num2);
  END saju_pro;
  /
  </code></pre>
  
  <p><strong>PRO2</strong></p>
  
  <pre><code>CREATE  PROCEDURE  saju_pro (
       s_num1      IN     NUMBER,
       s_num2      IN     NUMBER,
       s_num3      OUT     NUMBER  )
  AS
  BEGIN
      s_num3 := (s_num1+s_num2);
  END saju_pro;
  </code></pre>