alterTables(connection, desiredDb, doDrops, modifyColumns, continueOnError);
alterTables(connection, desiredDb, continueOnError);
    public void alterTables(Database desiredDb, boolean doDrops, boolean modifyColumns, boolean continueOnError) throws DynaSqlException    {        Connection connection = borrowConnection();        try        {            alterTables(connection, desiredDb, doDrops, modifyColumns, continueOnError);        }        finally        {            returnConnection(connection);        }    }