final String CREATE_TABLE_RECIPES = "CREATE TABLE IF NOT EXISTS " +
        TABLE_RECIPES + "(" +
        RECIPE_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " +
        RECIPE_NAME + " TEXT, " +
        RECIPE_INSTRUCTIONS + " TEXT, " +
        RECIPE_RATING + " FLOAT " +
        ")";

ratingbar.setOnRatingBarChangeListener(new RatingBar.OnRatingBarChangeListener() {
        @Override
        public void onRatingChanged(RatingBar ratingBar, float rating, boolean fromUser) {
            db.addRating(id, rating);
}
});

public void addRating(int id, float rating) {
    String SET_RATING =
            "UPDATE " + TABLE_RECIPES +
                    " SET " + RECIPE_RATING + " = " + rating +
                    " WHERE " + RECIPE_ID + " = " + id;

    SQLiteDatabase db = this.getWritableDatabase();
    db.rawQuery(SET_RATING, null);
    db.close();
}

public float getRating(int id) {
    String GET_RATING =
            "SELECT " + RECIPE_RATING +
                    " FROM " + TABLE_RECIPES +
                    " WHERE " + RECIPE_ID + " = "  + id;
    SQLiteDatabase db = this.getReadableDatabase();
    Cursor c = db.rawQuery(GET_RATING, null);
    c.moveToFirst();
    float rating =  c.getFloat(0);
    Log.i("getRating", "gotRating: " + rating);
    return rating;
}