dbaplus Community
Sep 24, 2017 · Databases
Why Splitting a Giant SQL Query Cut Report Time by 6 Seconds
In a high‑pressure performance‑optimization project, a team dissected a massive, multi‑with‑clause SQL report into smaller temporary‑table queries, applied dimensional modeling, and achieved a 6‑second runtime reduction while handling complex reporting requirements across regions, contractors, and milestones.
Data WarehouseQuery RefactoringReporting
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