map vs flatMap vs mapValues vs flatMapValues | Spark with Scala | Coding Interview questions

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Hi Friends,
Today I have explained about the transformations map, flatMap, mapValues and flatMapValues with sample Scala code.

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  5. #map vs flatmap
  6. #flatmapValues
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Комментарии
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Thank you very much! This was a very detailed explanation and helped me clear my doubts

ananthchief
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Very well taught the key differences in one single video. Thank you.

shubhamdabra
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Hi Sravana Lakshmi,

Can you please tell me how we can divide below multi delimited data
Range, 500|600|800
marks, 900|700|600

final result should be separated into 4 columns

normally its a "pipe delimiter" but first column merged with " , " it really helps me as it is frequently asked question in interviews

kakarlavinodreddy
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I had this problem while trying to do the flatMapValues :

<console>:24: error: value flatMapValues is not a member of
val mvrdd = p.flatMapValues(a => (a to 12))


please help

yousfoss