This post is about the several ways of reading the query plan (called the showplan options). Now that we know what a query plan is, why it’s helpful and what it consists of (iterators), let’s find out how we can read the query plans in SQL Server. I believe most of you are familiar with Read More
In this article I will explain the concept of iterators, in the context of the query execution plan. First, you will find out what they are. Second, I will tell you what are the main actions performed by an iterator. And last, but not least, I am going to show you how they work in Read More
This is the first post from my complex tutorial project called “Understanding Query Execution Plans”. This is an introductory post, in which I will guide you through the concepts you need to know before starting to analyze the plans.