_platform.getSqlBuilder().alterDatabase2(currentModel, desiredModel, null);
_platform.getSqlBuilder().alterDatabase(currentModel, desiredModel, null);
    protected String getAlterDatabaseSQL(String currentSchema, String desiredSchema) throws IOException    {        Database currentModel = parseDatabaseFromString(currentSchema);        Database desiredModel = parseDatabaseFromString(desiredSchema);        _platform.getSqlBuilder().alterDatabase2(currentModel, desiredModel, null);        return _writer.toString();    }