Essential session storage is required to sign in. Optional analytics remain off unless you allow them.
Turn the path into reviewable evidence with its scoped project milestones and explicit grading criteria.
Design a small relational schema (e.g. a library, a store, or a blog) in third normal form: tables with appropriate data types, PRIMARY KEYs, and...
Given a dataset (orders/events/transactions), write a suite of analytical queries that use Common Table Expressions for readability and WINDOW...
Start from a schema with several slow queries. Use EXPLAIN / EXPLAIN ANALYZE to read the plans, identify the bottlenecks (sequential scans, bad join...