check if this array contains duplicates. how would you go about this sql problem ect
Junior Data Engineer Interview Questions
452 junior data engineer interview questions shared by candidates
Java based question, SQL questions, activities partaken in prior to joining such as projects
What is normalization and denormalization? Why are they important in database design?
Why do you want to work here?
1. Given a case with 3 different data sources, how would you move ahead to process data for analytics purpose? 2. Difference between Tableau and Power BI 3. Window functions 4. Cardinality 5. How to programmatically handle SCDs 6. Troubleshooting in SSIS 7. ER Diagram 8. DAX queries (SUM vs SUMX)
Can you recall a time you were given misinformation and how did you deal with it?
Do you have python experience?
What areas of tech are you interested in?
What is data vault, Priority (Having or Where), CTE, How to check df size (pandas) Formats of files(CSV, TSV, Avro, etc) What is blob
Questions mostly about my background, interest in the company, where I want to go in company, and some general knowledge of big data technology.
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