要从android SQlite数据库中的表中删除所有记录？

Question

我试图从数据库中的表中删除所有记录，但我无法删除。有人能帮助我吗？

我正在使用此链接Delete

   public void delete() 
   {
    String DELETEPASSCODE_DETAIL = "DELETE * FROM Payment;";
    db.execSQL(DELETEPASSCODE_DETAIL);
   }

我在这里调用删除功能

private void savepay() {
        // TODO Auto-generated method stub
        try{
            String check;

        webService calService=new  webService();
             dh.open();
             Cursor c = dh.pay();


            Toast.makeText(getBaseContext(),className+c.getString(1)+c.getString(2)+c.getString(3)+c.getString(4),Toast.LENGTH_LONG).show();
         check=  calService.paymentReceipt("PaymentReceipt",c.getString(1),c.getString(2),c.getString(3),c.getString(4),c.getString(5),"0");

             }
             while (c.moveToNext()); 
             dh.delete();//here i called delete function
             dh.close();



            }

Answer 1

您的代码应该像

public void delete() 
{
          String DELETEPASSCODE_DETAIL = "DELETE FROM Payment;";
          db.execSQL(DELETEPASSCODE_DETAIL);
}

Answer 2

应该是：

“从付款中删除”

更多详情：http://www.sqlite.org/lang_delete.html

Answer 3

应该{​​{1}}而不是DELETE FROM Payment; 请参阅删除查询的结构 见How to write delete query