On the production server and they noticed scan count as Zero on the result. They reached out to me asking what actually it means.
I will describe in detail a bit later on during this blog post. Today we are going to learn that it is possible to have a nonclustered primary key.
SQL SERVER – Resolving Last Page Insert PAGELATCH_EX Contention Changing Primary Key to Non-Clustered
You can change your clustered primary key to Non-clustered Primary Key and can get the benefit of performance by reducing Pagelatch_EX.
I have personally implemented the solution suggested of resolving contention about creating an index with OPTIMIZE_FOR_SEQUENTIAL_KEY at my client’s place.
Today’s goal is to understand what is the Last Page Insert PAGELATCH_EX Contention Due to Primary Key. Let us start understanding it together.