Groupby Free Sql Server Training

Creating indexes is one of the most powerful ways to improve performance in your SQL Servers. It's not easy to form indexes for a large and complicated query, and things only get more complicated when queries can come from vendor applications, ORM tools like LINQ, or any number of other sources. When it's time to create the perfect index, there's guidelines and strategies to get it right, and then prove that it's helping. However, performance is not always about just one index, and general index strategy can also achieve great results. We'll focus on how to get the perfect index or indexes for your workload.