SQL: Unpivot Data
Medium
SQL — Advanced
SQL
UNION ALL
Unpivot
Transform columns back to rows.
Constraints
Write standard SQL (MySQL 8.0 compatible).
Examples
Example 1:
Input: name q1 q2
Ahmed 100 200
Output:
Example 2:
Input: name q1 q2
Ahmed 100 200
Output:
Hints
UNION ALL or UNPIVOT.
Tests:
Runtime:
Memory:
Test
Input:
Expected:
Got:
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