How to apply union between 2 tables if table A has 5 columns and table B has 8 columns
Data Engineer Interview Questions
21,096 data engineer interview questions shared by candidates
About project Previous experience Some random unrelated stuff about which I doubt even he had any idea
Describe your last project with the last Employer
Why are you interested in working with data?
1. Get the top 10 IP addresses from 1TB data files having semi-structured data using map reduce. 2. The intersection of two lists, with the output being in a sorted order. 3. Third highest salary in each department (SQL)
Lot of interest given to concepts and foundations.. they expect you to be rock solid on your fundamentals..
2. Find the sum of contiguous subsequence with maximum sum. (The list contains both positive and negative integers)
Medium level question from leetcode.
Situational Question- If a doctor at the NHS asks- "will Hepatitis B increase or decrease in my area in the next 10 years?" What answer will you give him?
they asked me about Apache spark and python.
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