آپدیت کردن دیتابیس در برنامه

سلام من یک دیتابیس در نسخه 1 برنامه ام دارم که یک جدولش 10 تا خط داره!

حالا میخوام برنامه رو آپدیت کنم و دیتابیس برنامه رو اپدیت کنم که 20 تا خط داره!
حالا سوالم اینه دستور SQL Query که باید وارد که که 10 تا خط جدید رو به 10 تا قبلی اضافی کنه چیه؟
و اینکه برنامه چجوری میفهمه که برنامه آپدیت شده؟

چیزی که من فهمیدم در کلاسی که دیتابیس رو تعریف کردید وقتی نسخه دیتابیس رو بالا ببرید متد onUpgrade() اجرا میشه و دستور Query رو باید اونجا گذاشت درسته؟

کدم رو هم زیر گذاشتم :

package com.test.test1;

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import android.content.Context;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteException;
import android.database.sqlite.SQLiteOpenHelper;

public class DataBaseHandler extends SQLiteOpenHelper {

   // The Android's default system path of your application database.
   private static String DB_PATH;

   private static String DB_NAME = "MyDatabaSe";
   private static final int DATABASE_VERSION = 1;
   private SQLiteDatabase myDataBase;

   private final Context myContext;

   /**
    * Constructor Takes and keeps a reference of the passed context in order to
    * access to the application assets and resources.
    * 
    * @param context
    */
   public DataBaseHandler(Context context) {

      super(context, DB_NAME, null, DATABASE_VERSION);
      this.myContext = context;
      DB_PATH = context.getDatabasePath(DB_NAME).toString();
//    Log.e("path", DB_PATH);
   }

   // ==============================================================================

   /**
    * Creates a empty database on the system and rewrites it with your own
    * database.
    * */
   public void createDataBase() throws IOException {

      boolean dbExist = checkDataBase();

      if (dbExist) {
         // do nothing - database already exist
      } else {

         // By calling this method and empty database will be created into
         // the default system path
         // of your application so we are gonna be able to overwrite that
         // database with our database.
         this.getReadableDatabase();

         try {

            copyDataBase();

         } catch (IOException e) {

            throw new Error("Error copying database");

         }
      }

   }

   // ==============================================================================

   /**
    * Check if the database already exist to avoid re-copying the file each
    * time you open the application.
    * 
    * @return true if it exists, false if it doesn't
    */
   private boolean checkDataBase() {

      SQLiteDatabase checkDB = null;

      try {
         String myPath = DB_PATH;
         checkDB = SQLiteDatabase.openDatabase(myPath, null, SQLiteDatabase.OPEN_READONLY);

      } catch (SQLiteException e) {

         // database does't exist yet.

      }

      if (checkDB != null) {

         checkDB.close();

      }

      return checkDB != null ? true : false;
   }

   // ==============================================================================

   /**
    * Copies your database from your local assets-folder to the just created
    * empty database in the system folder, from where it can be accessed and
    * handled. This is done by transfering bytestream.
    * */
   private void copyDataBase() throws IOException {

      // Open your local db as the input stream
      InputStream myInput = myContext.getAssets().open("database/" + DB_NAME);

      // Path to the just created empty db
      String outFileName = DB_PATH;

      // Open the empty db as the output stream
      OutputStream myOutput = new FileOutputStream(outFileName);

      // transfer bytes from the inputfile to the outputfile
      byte[] buffer = new byte[1024];
      int length;
      while ((length = myInput.read(buffer)) > 0) {
         myOutput.write(buffer, 0, length);
      }

      // Close the streams
      myOutput.flush();
      myOutput.close();
      myInput.close();

   }

   // ==============================================================================

   public void openDataBase() throws SQLException {

      // Open the database
      String myPath = DB_PATH;
      myDataBase = SQLiteDatabase.openDatabase(myPath, null, SQLiteDatabase.OPEN_READONLY);

   }

   // ==============================================================================

   @Override
   public synchronized void close() {

      if (myDataBase != null)
         myDataBase.close();

      super.close();

   }

   // ==============================================================================

   @Override
   public void onCreate(SQLiteDatabase db) {

   }

   // ==============================================================================

   @Override
   public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {

   }

   // Add your public helper methods to access and get content from the
   // database.
   // You could return cursors by doing "return myDataBase.query(....)" so it'd
   // be easy
   // to you to create adapters for your views.

}