Nerf-Herding in Denver (SQL Saturday #331)

In the Star Wars universe, the nerf was an adaptable, hairy, slow, grumpy animal that was important for its meat. In SQL Server, the Statistic is a flexible, hairy, (sometimes) slow, grumpy blob that is important in query compilation. The similarities don’t end there, though. Both nerfs and statistics can get unwieldy if not managed properly.

I have the privilege of speaking at SQL Saturday #331 in Denver this upcoming weekend (Saturday, September 20, 2014) about managing statistics in SQL Server. This topic was a major focus in our largest production environments and has yielded much of what I will be presenting in this session.

Here is a link to my files and below is an outline of what will be covered in this session:

  • back-of-the napkin statistics overview
  • the cost of bad statistics
    • underestimates
    • overestimates
  • managing statistics
    • naming
    • monitoring modifications
    • trace flag 2371
    • skew analysis
    • incremental statistics
  • observing and validating changes

There are going to be a lot of excellent speakers at this event so you’re not going to be disappointed, regardless of the session(s) you choose. I look forward to seeing you there. I’ll be the half-witted, scruffy-looking nerf-herder.


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