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drop table if exists _hibasHianyzasok; create table _hibasHianyzasok (select hianyzasId from hianyzas left join ora using (oraId) WHERE ora.tipus IN ('elmarad','elmarad máskor')); DELETE FROM `hianyzas` WHERE `hianyzasId` IN (SELECT * FROM _hibasHianyzasok); drop table if exists _hibasHianyzasok;