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SQL skill

Reshaping, Pivots & Parsing

20 problems across 3 subtopics. Pick a subtopic to start — each climbs easy → hard.

SQL

Pivot & unpivot

55
0 / 10 solvedStart →
SQL

Array agg & LISTAGG

22
0 / 4 solvedStart →
SQL

String parsing

33
0 / 6 solvedStart →