SQL - Between "Medium" and "Hard" on Leetcode. They expect you to know all of your JOINs, as well as subquerying and partition windows. Python - Around "Medium" on Leetcode. Mostly around data structures.
Data Engineer Interview Questions
20,965 data engineer interview questions shared by candidates
SQL ==> Sales, promotions, products DB I was able to complete only 3 questions. Python ==> solved only 3 questions. find giving letter in a string Replace None with previous element from List, there was some challenges [None] [None,1,2] ==> [None,1,2] [1,None,2] ==> [1,2,2] [1,4,None,None,3]===> [1,4,4,4,3] Forgot one question In the SQL part, please make sure you learn how to calculate %
Was asked one hard SQL question
(python) Given two sentences, construct an array that has the words that appear in one sentence and not the other.
SQL: joins, aggregations Python: basic data structures
why data engineer?
How do you update a table with a large number of updates, while maintaining the availability of the table for a large number of users?
Logic based questions. Scenarios. Code reviews
I had to explain a project that I feel most proud of
As I have signed confidentiality agreement I cant share interview questions. But it was pure technical interviews and very interesting. You have to be strong professional in your occupation to get an offer.
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