Track NULL values anywhere in a Spark DataFrame | Important Spark Use case | Interview Question

[@gurumoorthysivakolunthu9878]

This is Ultimate, Sir... This real time requirement is very helpful for beginners like me... Could clearly understand the actual use case of isNull... Also about flatleft, collect... How much impact / potential it has... And ultimately how to implement it...
That too you have covered all the possibilities of this scenario...
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This is what we as a learner want, Sir... No one is teaching like this...
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To be honest... I have just spent few seconds for isNull... But, now I can understand its purpose...
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... Please make more videos like this, Sir...
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Thank you, Sir....

[@aneksingh4496]

Very nicely expressed

[@sanjeev5149]

Very informative video

[@rajasekharreddy9022]

good

[@ravikirantuduru1061]

How to do same approach in pyspark

[@Ravi-gu5ww]

Please bring this pyspark..

[@vinothkumar-lc4fr]

When ever I do the changes in the code , it is not getting effective until i do the maven build in intelij ..Any suggestions please

[@ravikirantuduru1061]

I explored python does not have foldleft