During the Comprehensive Database Performance Health Check, I often get the question about Estimated vs Actual Execution Plan. Let’s discuss.
Single Column Single Row and TABLE SCAN – SQL in Sixty Seconds #111
Can a single column and single row result do an entire table scan? I recently got this question in my Comprehensive Database Performance Health Check.
Dirty Read with NOLOCK – SQL in Sixty Seconds #110
Recently I noticed that my client has been using the WITH NOLOCK hint with their queries and expecting that it will improve the queries performance.
Move TempDB for Performance – SQL in Sixty Seconds #107
A client had slow overall performance because TempDB sat on a slow drive. In this SQL in Sixty Seconds video, I show how to move TempDB for performance.
Do MAX(col) Scan Table? – SQL in Sixty Seconds #106
While working on working on a Comprehensive Database Performance Health Check my client asked me – Do MAX(col) Scan Table? Let us learn about that today.
Rollback TRUNCATE – Script – SQL in Sixty Seconds #105
One of the most popular questions, I keep on receiving is that – Is it possible to Rollback Truncate operation? The answer is YES.
SQL SERVER – Live Query Statistics – SQL in Sixty Seconds #104
The biggest challenge is to know about the queries current execution status. In this video, we are going to see the details about Live Query Statistics.