Software Vendor Mistakes With SQL Server: Dealing With Bad Parameter Sniffing

Bad Wrap


When people hear the words “parameter sniffing”, there’s almost a universally bad reaction. They lose their minds and start raving about how to “fix” it.

  • Recompiling everything
  • Using optimize for unknown hints
  • Using local variables
  • Clearing the plan

A Suggestion To Make Key Lookups Less Of A Performance Problem In SQL Server

Odor Of Gas


One problem with Lookups, aside from the usual complaints, is that the optimizer has no options for when the lookup happens.

If the optimizer decides to use a nonclustered index to satisfy some part of the query, …

Join Me At Data Platform Summit 2020!

The Road From Nowhere


This year, I’m teaching an 8 hour online workshop at Data Platform Summit, and I’d love it if you joined me.

Here’s what I’ll be teaching:

Class Title: The Beginner’s Guide To Advanced Performance Tuning