Question: Does Sort Order in Index Column Matters for Performance?
Answer: Wow, it has been a long time since I have heard this question and the matter of fact, I have never blogged about this subject on this blog. I have received this question during my recent Comprehensive Database Performance Health Check.
Question: What is Read Ahead Read in SQL Server?
Answer: This is SQL Server’s feature which brings data pages into the buffer cache.
Just another day I was delivering my training SQL Server Performance Tuning Practical Workshop, I noticed that organizations had many stored procedures but none of the SP had any comments. When I asked them why their Stored Procedures does not have comments, their point was that they believed because of the comments, the size of the execution plan increases. Not True, when SQL Server builds an execution plan, it ignores tabs, spaces, and all the comments.
It has been awhile since I asked any puzzle on SQLAuthority.com, Let us see a very simple puzzle today which involves execution plan as well.
Question: How to Force a Parallel Execution Plan for a Query?
Many times, there are unforeseen conditions and few developers can’t predict which writing the code of a product. This is the reason we have bugs in the products and we all have job to do. One of my clients was not able to run one of the inbuilt reports which come with SQL Server Management Studio. The report name was Object Execution Statistics. As per them, this report was running fine until last week and it had suddenly stopped working. They wanted some idea this as it was not a show stopper for them. When they launch the report, they see below error
Question: What is WorkTable in SQL Server?