How do you Handle skewness, a coding exercise in spark, questions of partitionby , repartition, shuffle and sort, catalyst optimizer?
Big Data Developer Interview Questions
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How was your Past jobs experience?
Overlapping Intervals and Second appearance of every character in a String
Times X{open, close} , Y{open, close} rec_type, status, time x1, open, 930 x1, close 1030 x2, open, 1035 y1, open, 1040 y2, open, 1041 x2, close, 1100 x3, open, 1110 x3, close, 1115 y1, close, 1120 y2, close, 1121 |---x1, open, 930 |---x1, close 1030 |-----x2, open, 1035 | y1, open, 1040----| | y2, open, 1041 ---+---| |-----x2, close, 1100 | | |---x3, open, 1110 | | |---x3, close, 1115 | | y1, close, 1120---| | y2, close, 1121-------| Find the pairs of x-type and y-type where they have any time overlap between them.
Typical interview questions, nothing that one would not expect.
1-SQL output of different joins.
About my background and follow up questions
Also asked about previous project and some specification of those.
What is the difference between SQL and NoSQL database?
sql queries, list and array manipulations, dynammic programming
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