Multiple DISTINCT Aggregate Performance In SQL Server
In this video, I dive into a common performance issue in SQL Server queries: multiple distinct aggregates and how they can significantly slow down row mode operations. I explain the challenges these aggregates pose, particularly when used extensively, and demonstrate why batch mode can be a game-changer for improving query performance. However, I also highlight some of the limitations faced by Standard Edition users, such as the lack of full support for certain features that could otherwise optimize queries more effectively. The video covers practical solutions like using temporary objects or adjusting compatibility levels to leverage batch mode and columnstore indexes, providing clear examples and detailed explanations to help viewers understand these concepts better.
CHAPTERS
00:00:00 - Introduction and Video Purpose
00:02:46 - Multiple Distincts in Row Mode Queries
00:07:38 - Performance Impact of Multiple Distincts
00:12:59 - Enterprise Edition Solutions
00:15:29 - Standard Edition Considerations
00:18:51 - Recap and Conclusion
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Auf dieser Seite können Sie das Online-Video Multiple DISTINCT Aggregate Performance In SQL Server mit der Dauer stunde minuten sekunde in guter Qualität ansehen, das der Benutzer Erik Darling (Erik Darling Data) 13 August 2024 hochgeladen hat, den Link mit Freunden und Bekannten teilen, dieses Video wurde auf Youtube bereits 572 Mal angesehen und es wurde von 67 den Zuschauern gefallen. Viel Spaß beim Betrachtenden Zuschauern gefallen!
