Round Two's Same-Day-Duplicate SQL Question

This is my write-up for the second round of the TikTok DS interview (I also have a write-up for the first round, but I won't link it here). The interviewer gave a brief self-introduction. Then I introduced myself and walked through my resume. They dug into things like how I did data preprocessing, how I handled the bias/variance tradeoff, and how I chose performance metrics, and then briefly dug…

Shared by a candidate · reported Mar 2026. Interview formats change; use it as a guide, not a script.