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easySnowflakeRetoolMicrosoft

Pivot rows to columns in SQL, without using the PIVOT keyword.

Asked constantly because it tests whether you understand aggregation rather than syntax. The CASE-inside-aggregate idiom works on every engine, plus when to reach for Snowflake's PIVOT and its dynamic variant.

Updated Aug 2026 · Grounded in real Forward Deployed Engineer interview loops and written to a senior-engineer editorial bar.

Asked constantly because it tests whether you understand aggregation rather than syntax. The CASE-inside-aggregate idiom works on every engine, plus when to reach for Snowflake's PIVOT and its dynamic variant.

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