小编use*_*643的帖子

是否可以在plsql中执行动态的sql并将结果返回到sys_refcursor？我已经粘贴了我的尝试,但dosnt缝合工作,这是我的java应用程序的错误

ORA-01006:绑定变量不存在ORA-06512:在"LIVEFIS.ERC_REPORT_PK",第116行ORA-06512:在第1行

但这可能是由java误解的东西,一切接缝编译精细soo我不确定.

 procedure all_carers_param_dy (pPostcode in carer.postcode%type, pAge Number
                                ,pReport out SYS_REFCURSOR) is
  begin
    declare
      lsql  varchar2(500) :='SELECT c.id FROM carer c, cared_for cf,carer_cared_for ccf '
          ||' where c.id = ccf.carer_id (+)'
          ||' AND cf.id (+) = ccf.cared_for_id';

    begin

     if pPostcode is not null and pAge <= 0 then
        lsql := lsql||' AND c.postcode like ''%''|| upper(pPostcode)||''%''';
      elsif pPostcode is null and pAge > 0 then 
         lsql := lsql||' AND ROUND((MONTHS_BETWEEN(sysdate,c.date_of_birth)/12)) = pAge';
      elsif pPostcode is not null and …

想知道是否有人能指出我正确的指挥,我已经开发了一个乒乓球游戏,它需要双重缓冲由于闪烁.我在这里尝试了一些帖子尝试使它工作,但我仍然是一个摇摆awt足够的初学者,任何帮助将是惊人的谢谢.

public class PongPanel extends JPanel implements Runnable {

private int screenWidth = 500;
private int screenHeight = 300;

private boolean isPaused = false;
private boolean isGameOver = false;

private int playToPoints = 10;

private Padel player1,player2;
private Ball ball;

private Thread gameThread;
private Image dbImage;
private Graphics dbg; 

public PongPanel() {
   setPreferredSize(new Dimension(screenWidth,screenHeight));
   setBackground(Color.BLACK);
   setDoubleBuffered(true);
   setFocusable(true);
   requestFocus();

   player1 = new Padel(Position.LEFT,screenWidth,screenHeight);
   player2 = new Padel(Position.RIGHT,screenWidth,screenHeight);
   ball = new Ball(10,screenWidth/2,screenHeight/2,Color.WHITE);
}

public void addNotify(){
 super.addNotify();
   startGame();
}

private void startGame(){ …