T-SQL bugs, pitfalls, and best practices – pivoting and unpivoting
SQL Performance
SEPTEMBER 12, 2019
This article is the fifth part in a series about T-SQL bugs, pitfalls and best practices. Here I'll describe the trap, the potential bug, and a best practice that prevents the bug. Previously I covered determinism , subqueries , joins and windowing. This month I cover pivoting and unpivoting. 830 rows affected).
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