SELECT t1.datum, t1.kg, t1.voce
FROM ProdajaVoca AS t1 INNER JOIN ProdajaVoca AS t2 ON t1.kg = t2.kg AND t1.datum = t2.datum
WHERE t2.voce='jabuka' and (t2.kg <> 0 OR t1.voce='jabuka')
ORDER BY t1.datum;