Things to Consider When SQL Server Asks for an Index

One of the things I love about SQL Server is that during query plan compilation, it takes a moment to consider whether an index would help the query you’re running. Regular blog readers will know that I make a lot of jokes about the quality of these recommendations – they’re often incredibly bad – but even bad suggestions can be useful if you examine ’em more closely.

In SQL ConstantCare®, we analyze SQL Server’s index recommendations and come up with our own suggestions. Here are some of the things we think about as we’re doing the analysis:

Did SQL Server