How many years of SQL programming do you have? In your most recent position as a data analyst, for what percentage of your analytical projects did you utilize your SQL skills?
SQL is the most well-known scripting language, and many believe it is the easiest to learn. To be marketable, data analysts should learn SQL and gain experience using it. This question is straightforward--the Morningstar interviewer wants to gauge the strength of your SQL programming skills.
"I have seven years of experience programming with SQL. Over this period, I have used SQL for over 90% of my projects. At times, I have used multiple languages for different phases of projects, but find SQL to be the language I turn to the most."
Even though this information is probably available in your resume, the Morningstar interviewer asks the question to confirm what they've already read. If you only have a few years of experience, emphasize how your skills have grown with each subsequent project. You can provide examples of projects you worked on using your SQL programming skills to illustrate your answer.
