java.sql.SQLException: Function sequence error

import java.io.FileInputStream;
import java.sql.*;
import java.util.Properties;

public class  Prep  {


	private static final  String  USERNAME = "JDBC";
	private static final  String  PASSWORD =  "PASSWORD";

	private static final String  jdbcstr = "jdbc:as400:/COM.COM.COM";	



    public static void main(String[] args) {
 
		String salesku  = "78111";
		PreparedStatement stmt  = null;
		Connection con = null;
		
	    try 
        {
                                
	     DriverManager.registerDriver(new com.ibm.as400.access.AS400JDBCDriver());
		 con  = (Connection) DriverManager.getConnection(jdbcstr, USERNAME,PASSWORD);	

         
	     String sql  = "SELECT  * from   MYLIB.SALES  WHERE  ((YEAR = 2012 AND MONTH >=5)  OR (YEAR = 2014 AND MONTH <= 02)) AND DIST in (1) AND SKU  =  ?";

		 System.out.println(sql);
	     	
	     stmt =  con.prepareStatement(sql);   
		 stmt.setString(1,"salessku");

	     ResultSet rs = stmt.executeQuery(sql);
	
	           // Get MetaData for Db2 table
            ResultSetMetaData metaData = rs.getMetaData();
            int colCount = metaData.getColumnCount();
 
            // Iterate through the Db2 data in the result set
            while (rs.next()) {
                for (int i = 0; i < colCount; i++) {
                    System.out.println(metaData.getColumnName(i + 1) + ": " + rs.getString(i+1));
                }  
            }
    	
       
        }


             catch (Exception ex) {  
                
           			ex.printStackTrace(System.err);     
   
          }

           finally {
            if (stmt != null) try { stmt.close(); } catch(Exception e) {}
            if (con != null) try { con.close(); } catch(Exception e) {}
        }    

     }
        
 }  

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