Callling stored procedures with input/output parameters and ResultSet

[Java Tip]

Following example shows how to call stored procedures with input parameters, output parameters and ResultSet.

Code:

public static int storedProcWithResultSet (String parms) throws Exception
  // Stored procedure to be called.
  CallableStatement cs = conn.prepareCall
   ("{? = call mypackage.p_astoreproc (?,?,?,?,?,?,?)}"); 

  // register input parameters
  cs.setString(2, "");   
  cs.setString(3, "");    
  cs.setString(4, parms);    
  // regsiter ouput parameters 
  cs.registerOutParameter(5, java.sql.Types.CHAR);    
  cs.registerOutParameter(6, java.sql.Types.CHAR);    
  cs.registerOutParameter(7, java.sql.Types.CHAR);    

  // Procedure execution 
  ResultSet rs = cs.executeQuery();

  // Note that you need to retrieve the ResultSet _before_ retrieving
  // OUTPUT parameters.
  if ( rs == null)
    System.out.println( "No resultSet!"); 
  else { 
    // To retrieve columns info.
    ResultSetMetaData rsmd = rs.getMetaData(); 
    int nbCol = rsmd.getColumnCount(); 
           
    int i = 0; 
    int j = 1; 
            
    Vector vResSet = new Vector(); 
    while (rs.next ()) { 
      System.out.println( "Record " + (i+1)); 
      // putting the ResultSet columns in a vector
      for ( j = 1; j <= nbCol ; j++){ 
        vResSet.insertElementAt(rs.getString(j), 0); 
        vResSet.addElement(rs.getString(j));
        } 

      // Reading vector to print ResultSet data
      for ( int k = 0 ; k < nbColonnes ; k++ ) { 
      if ( vResSet.elementAt(k) != null) 
          System.out.println( vResSet.elementAt(k).toString()); 
      else 
          System.out.println( "Column " + (k+1) + " Null"); 
          } 
      i++; 
      } 
     } 

     // Retrieving Strored Procedure OUTPUT parameters
     System.out.println( "return code of Stored procedure = : " 
        + cs.getInt(1));
       
     //  Retrieving OUTPUT parameters
     for ( int i = 5 ; i <= 7; i ++)    
       System.out.println( "parameter " + i + " : " 
         + cs.getString(i)); 

     return cs.getInt(1); 
}