Three self-contained practice guides, built from your course material — click a card to open it in a new tab.
SQL, PL/SQL scripting, ETL, and cloud data loading — dataset, DDL/DML, joins, window functions, MERGE & SCD, Streams/Tasks, RBAC, and a full end-to-end project.
Open guideThe full EMP/DEPT worksheet, reorganized by topic with hints on the trickiest wildcard, subquery, and self-join questions.
Open guideCoding exercises and concept questions, extended with AWS, Azure, and Snowflake interview questions for Python-based data engineering.
Open guide