Performance and TempDB Spills - SQL in Sixty Seconds 208
Автор: Pinal Dave
Загружено: 2025-01-10
Просмотров: 2328
Ever wondered how sorting large datasets can secretly slow down your SQL Server? In this episode of SQL in Sixty Seconds, we dive into tempdb spills caused by insufficient memory grants during sorting operations. Watch as we analyze an execution plan, uncover tempdb warnings, and demonstrate how spills impact performance. Learn practical tips like creating indexes, filtering data early, optimizing tempdb, and monitoring memory grants to reduce I/O overhead and improve query efficiency.
00:00 Intro
00:15 Storytime
00:28 Demo: Performance and TempDB Spills
01:45 Demo: Inconsistent Results
02:11 Importance of Tuning
02:25 Tips to Avoid TempDB Spills
03:18 Final Say
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