Fout bij het converteren van SQL

Het enige dat opvalt, is de hoofdletter AS en dezelfde kolomalias (standaard is mysql niet hoofdlettergevoelig). Kun je het zo proberen?

select campo1 as AGR_Number, campo2  as fattura, 
    campo76 as cod_periodo, campo78 as cod_scenario, 
    campo11 as origine, campo8 as Stazione,     
    campo13 as agent, campo30 as AAT_RATE, 
    sum (cast(campo30 as numeric (9,2))) as AAT_rate_sum 
from map_dati_trasformati 
where cod_mappatura = 'CARICA_NOL_CSV' 
AND CAMPO30 <> 0 
GROUP BY campo1, campo2, campo76, campo78, campo11 , 
        campo8, campo13, campo30