38 live SQL exercises
Query one connected MLOps platform with versioned data, experiments, deployments, serving events, drift, governance, and incidents.
Apple MLOps Interview Lab
Learn the real tables, construct each query step by step, then practice production SQL at senior and staff depth.
Live DB lab
Section titled “Live DB lab”40 reported questions
Twenty Python and twenty SQL prompts tied to public Apple candidate reports, with evidence boundaries and source links.
Fully guided solutions
See representative rows, output grain, construction steps, runnable queries, result interpretation, and production trade-offs.
Local and disposable
Native PostgreSQL on macOS. No Docker, cloud account, or private data.
Choose a path
Section titled “Choose a path”Set up PostgreSQLInitialize, connect, inspect, and reset the local database.
Understand the dataSee table grains, join paths, sample rows, and a repeatable query-building method.
Practice live SQLBrowse 24 original and 14 additional exercises with complete guided solutions.
Review reported promptsBrowse the source-backed Python and SQL question catalog.
Prepare for the loopStudy hiring-manager, system-design, and ML-infrastructure signals.
The live exercises are role-aligned practice material. They are intentionally kept separate from prompts candidates reported receiving at Apple.