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This 3-table relational schema powers all SQL, Python, and Power BI lessons:
Relational Cardinality:
• departments.dept_id (1) ────< staff.dept_id (N)
• staff.staff_id (1) ────────< shifts.staff_id (N)
You have completed all topics in this section on Data Notes by Tanu.
Verified Learner
Learner Name
MySQL Mastery
100% Curriculum Completed • Hands-on Verified
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