Uyini umehluko phakathi kokuguqulwa okuwumngcingo nokuguqulwa okubanzi
+ Narrow Transformation: In Narrow ukuguqulwa, zonke izakhi ezidingekayo ukubala amarekhodi e ukwahlukanisa olulodwa siphile ukwahlukanisa olulodwa umzali RDD. Ex:- Khetha, Hlunga, Union, + Ukuguqulwa okubanzi: Ukuguqulwa okubanzi, zonke izakhi ezidingekayo ukubala amarekhodi esigabeni esisodwa zingahlala ezigabeni eziningi ze-RDD yomzali. Ingxenye ingase ihlale ezingxenyeni eziningi ze-RDD yomzali. Kuhlanganisa ukuxuba inethiwekhi futhi ihlukaniswe phakathi kwezigaba. Ex:-Ngokusebenzisa Amaqembu, Ukuhlukaniswa, Izinhlobo