Well, the answer is pretty straight forward and that is what we are going to see in today’s video of One Scan for 3 Count Sum.
Based on my recent two videos, I got lots of questions about SUM(1) vs COUNT(1) Performance Battle. Let us see that in today’s video.
COUNT(*) and COUNT(1): Performance Battle – which one is better for performance? I got this question after watching my previous video.
Index Scans – Good or Bad? Lots of people ask about this question and I have built a blog post on the topic – SQL SERVER – Index Scans are Not Always Bad.
Today we are going to discuss if we should keep Optimize for Ad Hoc Workloads true or false. Let us see a detailed video about it.