352. PIVOT Salaries by Department

Hard Deloitte Advanced & Tricky

Query Rules

The query columns and order must match the expected result schema.
NULL values should be handled appropriately where applicable.
The grader compares output values and sorting order to evaluate.

Schema Browser

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locations

3 cols

departments

3 cols

employees

6 cols

orders

6 cols

Reference Solution

Expected SQL

SELECT dept_id,
   MAX(CASE WHEN dept_id = 10 THEN salary END) AS Engineering,
   MAX(CASE WHEN dept_id = 20 THEN salary END) AS HR,
   MAX(CASE WHEN dept_id = 30 THEN salary END) AS Sales
FROM employees GROUP BY dept_id;

SQL Editor

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Console Output

Console Terminal

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