از این کد ها به جای SQLiteOpenHelper استفاده می کنیم و هر بار که دیتابیس رو آپدیت می کنیم مقدار DB_VERS افزایش می دهیم مثل 1 یا 2 ... کد زیر :

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; import android.util.Log;

public class DataBaseHelper extends SQLiteOpenHelper {

// The Android's default system path of your application database.
private static String DB_PATH = "/data/data/com.example/databases/";
private static String DB_NAME = "eventsdb";
public static final int DB_VERS = 7;
private SQLiteDatabase myDataBase;
private final Context myContext;
private static String TAG = "DataBaseHelper";

/**
 * Constructor Takes and keeps a reference of the passed context in order to
 * access to the application assets and resources.
 * 
 * @param context
 */
public DataBaseHelper(Context context) {
    super(context, DB_NAME, null, DB_VERS);
    this.myContext = context;
}

/**
 * Creates an empty database on the system and rewrites it with your own
 * database.
 * */
public boolean createDataBase() throws IOException {
    boolean dbExist = checkDataBase();

    if (dbExist) {
        Log.d(TAG, "database already exist");

        //Running this method causes SQLite class checking for if New DB Version Exists and runs upgrade method
        getReadableDatabase();
        close();

        return true;
    } 
    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");
        }
        return false;
    }
}

/**
 * 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 + DB_NAME;
        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 transferring bytestream.
 * */
private void copyDataBase() throws IOException {
    // Open your local db as the input stream
    InputStream myInput = myContext.getAssets().open(DB_NAME);
    // Path to the just created empty db
    String outFileName = DB_PATH + DB_NAME;
    // 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 + DB_NAME;
    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) {
    Log.d(TAG, "UPGRADING Database...");
    try {
        copyDataBase();
    } 
    catch (IOException e) {
        throw new Error("Error copying database");
    }
}

// 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.

}