[SQL] Wie kann ich meine Tabelle löschen?

public void dropTable(){
		database.delete(DATABASE_TABLE, null, null);
	}

public void onUpgrade(SQLiteDatabase database, int oldVersion,
			int newVersion) {
		Log.w(DatabaseHelper.class.getName(),
				"Upgrading database from version " + oldVersion + " to "
						+ newVersion + ", which will destroy all old data");
		database.execSQL("DROP TABLE IF EXISTS timetable");
		onCreate(database);
	}