CASE Statements & Conditional Logic: Real-World

CASE statements enable conditional logic in SQL - categorize data, transform values, handle NULL, create calculated fields. Used in every report, dashboard, and data transformation pipeline. Essential for business logic in queries.

Customer service priority bands

Support operations need a reproducible priority label derived from account tier, unresolved incidents, and response age.

Centralized conditional logic produces consistent operational routing and reporting.

Assign a priority band

SELECT ticket_id, CASE WHEN account_tier = 'enterprise' AND age_hours >= 2 THEN 'urgent' WHEN age_hours >= 24 THEN 'high' ELSE 'standard' END AS priority FROM tickets;

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