SQL remains a vital skill for data scientists. Interviewers may ask: “Write a query to find duplicate rows,” or “What is a window function?” These questions test your ability to extract insights from raw data. Expect to write complex queries involving joins, aggregations, and subqueries. Even in roles focused on machine learning, SQL skills are expected. Sharpen your syntax and logic,... https://www.scholarhat.com/tutorial/datascience/data-science-interview-questions-and-answers