1146 : Table 'notarishuis.rubrieken' doesn't exist
SELECT SQL_CACHE
                    rubrieken.id
                  , CONCAT(rubrieken.titel, " (", COUNT(objecten.id), ")") AS titel
               FROM rubrieken
         INNER JOIN objecten
                 ON objecten.rubrieken_id = rubrieken.id
           GROUP BY rubrieken.id
           ORDER BY rubrieken.titel