testsAndMisc/python_pkg/sql_drills/fixtures/01_pivot_sum/DOCS-task.md
Krzysztof kuhy Rudnicki ee78ae44cc
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Add sql_drills MySQL exact-match harness
Docker mysql:8.0.33 container, judge-style output grading, 12 original drills with live-verified references kept in tests only.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WzxdWZewj4WS5X6AZyjWDp
2026-11-01 21:13:18 +01:00

310 B

Pivot quarters into columns with SUM(CASE WHEN)

shop_sales holds one row per sale. Report the total amount per region with one column per quarter.

Output columns (no header): region, Q1, Q2, Q3, Q4.

  • A region with no sales in a quarter shows 0, never NULL.
  • Order by region ascending.