I got a couple of really great questions during my SSWUG Workshop this morning, as I was discussing seeks and scans, and since the answers to the two questions are very related, I decided to address both of them in more detail in this blog post. Most people think about a seek operation as retrieving just one or a few rows, and a scan as ...

This Friday is the last of my summer seminars. On August 27, I am presenting on plan caching, plan reuse and recompile and plan cache metadata. This is one of my favorite topics to talk about, because a lot of the information is not very widely known, and you can have a tremendous performance impact by making sure when plans are reused when that ...

I know, I haven't made a geeky post in a while... but I promise that I'll do one after this seminar. I'll take some of the best questions that I get during the chat and write them up here. Query Plans Workshop (June 30, 2010) Learn about basic elements, tools for exploring your query plans, how to detect inefficient plans and best practice ...

As I told you in April, I recorded two more seminars with Stephen Wynkoop, on aspects of Query Processing. The first one will be broadcast on June 30 and the second on August 27. In between, we'll broadcast my Index Internals seminar, on July 23.  Workshops can be replayed for up to a week after the broadcast, and you can even buy a DVD of ...

I am in Tucson again, having just recorded two more online workshops to be broadcast by SSWUG. We haven't set the dates yet, but we are thinking about offering a special package deal for the two of them. The topics really are related and I think they would work well together. They are both on aspects of Query Processing. The first was on how to ...