Interviewers ask this question to understand both your SQL fundamentals and how you apply data tools in real analysis work. They are usually looking for practical depth, not just a list of technologies.
Describe your experience with SQL or other data analysis tools. In your answer, explain:
Give a structured, experience-based answer rather than a definition of SQL. The interviewer expects a concise overview of your hands-on work, the types of datasets you have analyzed, the SQL concepts you are comfortable with, and one or two concrete examples that show business impact.